APA (7th ed.) Citation

Boone, C. E., & Spence, D. (1927). Some vulcanization tests of guayule rubber. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Boone, C. E., and D. Spence. Some Vulcanization Tests of Guayule Rubber. [Washington?]: U.S. Government Printing Office, 1927.

MLA (9th ed.) Citation

Boone, C. E., and D. Spence. Some Vulcanization Tests of Guayule Rubber. U.S. Government Printing Office, 1927.