• Armold, Chris: Steel pots. The history of America's steel combat helmets, Bender Publishing, 1997.
• Armold, Chris: Painted Steel. Steel Pots Vol. 2, Bender Publishing, 2000.
• NEW-Attard, Robert: Collecting Military Headgear, A Guide to 5000 Years of Helmet History, Shiffer Books, 2005
• Baer, Ludwig: Der Deutsche Stahlhelm, Drueckerei E. Schwend, Schwaebish Hall, 1975
• Baer, Ludwig: Die Geschichte des Deutschen Stahlhelmes, Selbstverlag Ludwig Baer, Sofortdruck Frankfurt, 1977
• Baer, Ludwig: The History of the German Steel Helmet 1916 - 1945, Bender, San Jose, CA, 1985.
• Baer, Ludwig: Vom Stahlhelm zum Gefechtshelm, Band 1 (1915-1945), Neu-Anspach, 1994.
• Baer, Ludwig: Vom Stahlhelm zum Gefechtshelm, Band 2 (1919-1994), Neu-Anspach, 1994.
• Baer, Ludwig: Vom Metallhelm zum Kunststoffhelm, Band 3, Neu Anspach, 1994.
• Bashford, Dean: Helmets and body armour in modern warfare, Defense Intelligence Agency, 1919
• Bossi-Nogueira: Storia dell'elmetto italiano, Rara, 1991.
• Clawson, Robert W: Russian Helmets - From Kaska To Stalshlyem 1916 – 2001, Bender Publishing, 2002.
• Cromwell, Benedict: America's munitions, 1917-1918. Report of the assistant secretary of war. Director of munitions, Governmnet Printing Office, Washington, 1919.
• Dagnas, Plasseraud, Struye: Les casques de combat du monde entier de 1915 à nos jours, vol. 1, Lavauzelle, 1984.
• Dagnas, Plasseraud, Struye: Les casques de combat du monde entier de 1915 à nos jours, vol. 2, PSD, 1991.
• Dagnas, Plasseraud, Struye: Les casques de combat du monde entier de 1915 à nos jours, vol. 3, PSD, 1996.
• Goodapple, Weinand: German helmets, 1933-1945, a collector's guide, Vol. I, self-publication, Illinois, 1981.
• Goodapple, Maertz, Weinand: German helmets, 1933-1945, a collector's guide, Vol. II, self-publication, Illinois, 1983.
• NEW-Hennequin, Roland: Casques Militaires Francais du XXeme siecle (1900-1944) Tome I, I.D.R. Editeur (in French, German and English)
• Haselgrove M.J. and Radovic B.: Helmets of the First World War Germany, Britain & their Allies, Shiffer, 2000.
• Hicks, Kelly: SS Steel – Parade and Combat Helmets of Germany’s Third Reich Elite, Bender Publishing, 2004
• Jacek, Kijak: Helmy Woiska Polskiego, 1917-1991, Widawnictwo Bellona, Warzawa, 1993.
• Lucy, Roger V.: Tin Lids. Canadian combat helmets (2nd Edition), Service publications, Nepean, Ontario, 2000.
• Marzetti, Paolo: Elmetti / Helmets, Albertelli, Parma, 2003 (newest edition after the historical ones of 1973, 1984 and 1996).
• Marzetti, Paolo: Uniformi e distintivi italiani, 1933-1945, Albertelli, Parma, 1995 (2nd edition).
• Radovic, Brana: German Helmets of the Second World War Volume One: M1916/18 - M1932 - M1935 - M1940 - M1942 - M1942/45, Shiffer, 2002
• Radovic, Brana: German Helmets of the Second World War Volume Two: Paratoop - Covers - Liners - Makers – Insignia, Shiffer, 2002.
• Radovic, Brana: German Camouflaged Helmets of the Second World War Volume One, Shiffer, 2004
• Radovic, Brana: German Camouflaged Helmets of the Second World War Volume Two, Shiffer, 2004
• Reynosa, Mark: The M-1 Helmet: A History of the U. S. M-1 Helmet in World War II, Schiffer Publishing, Ltd., 1996.
• Reynosa, Mark: U.S. Combat Helmets of the 20th Century: Mass Production Helmets, Schiffer Publishing, Ltd.,1997
• Reynosa, Mark: Post-World War II M-1 Helmets, an Illustrated Study, Schiffer Publishing, Ltd., 2000.
• Reynosa, Mark: Personnel Armor System Ground Troops Helmet: Illust. Study of US Military Current Issue Helmet, Schiffer Publishing, Ltd., 2000.
• Roudasmaa, Stig: Steel Helmets in the Finnish Defence Forces, pubblicato dal Museo Militare di Finlandia, Helsinki, 1997. (In Finnish with English summary)
• Skötte, Anders: A Collector's Guide to Scandinavian Military Helmets - Denmark and Norway,vol. 1, self-publication, 1987.
• Skötte, Anders: German Luftwaffe Flight Headgear of World War II, Nässert Graphica, Växjö, 1992
• Soulier, Jean-Paul: Les casques militaires suisses de 1916 à 1999, Soulier, 2000. Update of the previous edition of 1994, in French, German and English.
• Tubbs, Floyd R. with Robert W. Clawson: Stahlhelm, evolution of the German steel helmet, Kent State University Press, 2000. New edition updated from the 1971 original.
• NEW-Zentner, Rolf-Leonhard: Deutsche Militärhelme 1895-1975, Wehr & Wissen Verlag, Koblenz/Bonn 1980.

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