APA (7th ed.) Citation

Boorman, T. H. (1914). Asphalts, their sources and utilizations. The William T. Comstock co..

Chicago Style (17th ed.) Citation

Boorman, T. Hugh. Asphalts, Their Sources and Utilizations. New York: The William T. Comstock co., 1914.

MLA (9th ed.) Citation

Boorman, T. Hugh. Asphalts, Their Sources and Utilizations. The William T. Comstock co., 1914.

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