APA (7th ed.) Citation

Geological Survey (U.S.) & Ward, L. F. (1900). Report on petrified forests of Arizona. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and Lester F. Ward. Report on Petrified Forests of Arizona. Washington, D.C.: U.S. Government Printing Office, 1900.

MLA (9th ed.) Citation

Geological Survey (U.S.) and Lester F. Ward. Report on Petrified Forests of Arizona. U.S. Government Printing Office, 1900.