APA (7th ed.) Citation

Bynum, M. L. (1931). Coffee industry in Colombia. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Bynum, Mary L. Coffee Industry in Colombia. [Washington?]: U.S. Government Printing Office, 1931.

MLA (9th ed.) Citation

Bynum, Mary L. Coffee Industry in Colombia. U.S. Government Printing Office, 1931.