APA (7th ed.) Citation

United States. Postmaster General. (1879). Postal laws and regulations of U.S.A., published in accordance with Act of Congress approved Mar. 3, 1879. GPO.

Chicago Style (17th ed.) Citation

United States. Postmaster General. Postal Laws and Regulations of U.S.A., Published in Accordance with Act of Congress Approved Mar. 3, 1879. [Washington]: GPO, 1879.

MLA (9th ed.) Citation

United States. Postmaster General. Postal Laws and Regulations of U.S.A., Published in Accordance with Act of Congress Approved Mar. 3, 1879. GPO, 1879.