APA (7th ed.) Citation

United States. Post Office Department & ProQuest (Firm). (1855). Offers for carrying the mails -- Contracts, &c. Letter from the Postmaster General, transmitting abstract of offers for carrying the mails, with a report of all contracts, &c., &c. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Post Office Department and ProQuest (Firm). Offers for Carrying the Mails -- Contracts, &c. Letter from the Postmaster General, Transmitting Abstract of Offers for Carrying the Mails, with a Report of All Contracts, &c., &c. Washington: [publisher not identified], 1855.

MLA (9th ed.) Citation

United States. Post Office Department and ProQuest (Firm). Offers for Carrying the Mails -- Contracts, &c. Letter from the Postmaster General, Transmitting Abstract of Offers for Carrying the Mails, with a Report of All Contracts, &c., &c. [publisher not identified], 1855.