APA (7th ed.) Citation

(1925). Machine gun: Machine-gun mathematics (applicable also to howitzer company). GPO.

Chicago Style (17th ed.) Citation

Machine Gun: Machine-gun Mathematics (applicable Also to Howitzer Company). [Washington]: GPO, 1925.

MLA (9th ed.) Citation

Machine Gun: Machine-gun Mathematics (applicable Also to Howitzer Company). GPO, 1925.

Warning: These citations may not always be 100% accurate.