APA (7th ed.) Citation

Calvin, J. M. (1926). International trade in toys. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Calvin, Jeannette M. International Trade in Toys. [Washington?]: U.S. Government Printing Office, 1926.

MLA (9th ed.) Citation

Calvin, Jeannette M. International Trade in Toys. U.S. Government Printing Office, 1926.