Chalmers, H., & Wakefield, R. P. (1928). Shipment of samples and advertising matter to British Empire [information for U.S. exporters; with data on duties on advertising matter, by selected country or colony]. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationChalmers, Henry, and Roberta P. Wakefield. Shipment of Samples and Advertising Matter to British Empire [information for U.S. Exporters; with Data on Duties on Advertising Matter, by Selected Country or Colony]. [Washington?]: U.S. Government Printing Office, 1928.
MLA (9th ed.) CitationChalmers, Henry, and Roberta P. Wakefield. Shipment of Samples and Advertising Matter to British Empire [information for U.S. Exporters; with Data on Duties on Advertising Matter, by Selected Country or Colony]. U.S. Government Printing Office, 1928.