United States. Postmaster General. (1908). Advertisement inviting proposals for carrying mails of U.S. in States of Massachusetts, Rhode Island, and Connecticut, from July 1, 1909 to June 30, 1913. GPO.
Chicago Style (17th ed.) CitationUnited States. Postmaster General. Advertisement Inviting Proposals for Carrying Mails of U.S. in States of Massachusetts, Rhode Island, and Connecticut, from July 1, 1909 to June 30, 1913. [Washington]: GPO, 1908.
MLA (9th ed.) CitationUnited States. Postmaster General. Advertisement Inviting Proposals for Carrying Mails of U.S. in States of Massachusetts, Rhode Island, and Connecticut, from July 1, 1909 to June 30, 1913. GPO, 1908.
Warning: These citations may not always be 100% accurate.