APA (7th ed.) Citation

(1929). Fortification: Field fortification for artillery. GPO.

Chicago Style (17th ed.) Citation

Fortification: Field Fortification for Artillery. [Washington]: GPO, 1929.

MLA (9th ed.) Citation

Fortification: Field Fortification for Artillery. GPO, 1929.

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