APA (7th ed.) Citation

Gillingham, H. E. (1932). South American decorations and war medals. The American numismatic society.

Chicago Style (17th ed.) Citation

Gillingham, Harrold Edgar. South American Decorations and War Medals. New York: The American numismatic society, 1932.

MLA (8th ed.) Citation

Gillingham, Harrold Edgar. South American Decorations and War Medals. The American numismatic society, 1932.