United States. Postmaster General. (1818). Post-Office law, with instructions and forms, published for regulation of Post-Office. Lawrence amp; Wilson, Printers.
Chicago Style (17th ed.) CitationUnited States. Postmaster General. Post-Office Law, with Instructions and Forms, Published for Regulation of Post-Office. [Washington]: Lawrence amp; Wilson, Printers, 1818.
MLA (9th ed.) CitationUnited States. Postmaster General. Post-Office Law, with Instructions and Forms, Published for Regulation of Post-Office. Lawrence amp; Wilson, Printers, 1818.
Warning: These citations may not always be 100% accurate.