APA (7th ed.) Citation

(1930). Topography and surveying: Conventional signs. GPO.

Chicago Style (17th ed.) Citation

Topography and Surveying: Conventional Signs. [Washington]: GPO, 1930.

MLA (9th ed.) Citation

Topography and Surveying: Conventional Signs. GPO, 1930.

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