APA (7th ed.) Citation

Hoffmann, C. P. (1920). Physical tests of motor-truck wheels. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Hoffmann, Charles P. Physical Tests of Motor-truck Wheels. [Washington?]: U.S. Government Printing Office, 1920.

MLA (9th ed.) Citation

Hoffmann, Charles P. Physical Tests of Motor-truck Wheels. U.S. Government Printing Office, 1920.