APA (7th ed.) Citation

United States. Post Office Department & ProQuest (Firm). (1847). Offers for carrying the United States mail. Letter from the Postmaster General, transmitting a copy of the abstract of offers for carrying the mails of the United States for the year preceding the 1st of July, 1836. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Post Office Department and ProQuest (Firm). Offers for Carrying the United States Mail. Letter from the Postmaster General, Transmitting a Copy of the Abstract of Offers for Carrying the Mails of the United States for the Year Preceding the 1st of July, 1836. Washington: [publisher not identified], 1847.

MLA (9th ed.) Citation

United States. Post Office Department and ProQuest (Firm). Offers for Carrying the United States Mail. Letter from the Postmaster General, Transmitting a Copy of the Abstract of Offers for Carrying the Mails of the United States for the Year Preceding the 1st of July, 1836. [publisher not identified], 1847.