APA (7th ed.) Citation

United States. Post Office Department & ProQuest (Firm). (1841). Offers for carrying the U. S. 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, 1840. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Post Office Department and ProQuest (Firm). Offers for Carrying the U. S. 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, 1840. Washington: [publisher not identified], 1841.

MLA (9th ed.) Citation

United States. Post Office Department and ProQuest (Firm). Offers for Carrying the U. S. 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, 1840. [publisher not identified], 1841.