United States. Postmaster General. (1812). Post-Office law, with instructions and forms, published for regulation of Post-Office. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Postmaster General. Post-Office Law, with Instructions and Forms, Published for Regulation of Post-Office. [Washington]: [publisher not identified], 1812.
MLA (9th ed.) CitationUnited States. Postmaster General. Post-Office Law, with Instructions and Forms, Published for Regulation of Post-Office. [publisher not identified], 1812.
Warning: These citations may not always be 100% accurate.