United States. Postmaster General. (1908). Suggestions to publishers in preparation of 2nd-class matter for mailing, July 1908. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationUnited States. Postmaster General. Suggestions to Publishers in Preparation of 2nd-class Matter for Mailing, July 1908. [Place of publication not identified]: U.S. Government Printing Office, 1908.
MLA (9th ed.) CitationUnited States. Postmaster General. Suggestions to Publishers in Preparation of 2nd-class Matter for Mailing, July 1908. U.S. Government Printing Office, 1908.
Warning: These citations may not always be 100% accurate.