APA (7th ed.) Citation

(1917). Earth, sand-clay, and gravel roads. GPO.

Chicago Style (17th ed.) Citation

Earth, Sand-clay, and Gravel Roads. [Washington]: GPO, 1917.

MLA (9th ed.) Citation

Earth, Sand-clay, and Gravel Roads. GPO, 1917.

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