APA (7th ed.) Citation

United States. Postmaster General. (1900). Post office guide for Washington, D.C., containing schedule of arrival and departure of mails, matter relating to money-order and registry systems, postage rates, classification of mail matter, et cetera. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Postmaster General. Post Office Guide for Washington, D.C., Containing Schedule of Arrival and Departure of Mails, Matter Relating to Money-order and Registry Systems, Postage Rates, Classification of Mail Matter, Et Cetera. Washington, D.C.: [publisher not identified], 1900.

MLA (9th ed.) Citation

United States. Postmaster General. Post Office Guide for Washington, D.C., Containing Schedule of Arrival and Departure of Mails, Matter Relating to Money-order and Registry Systems, Postage Rates, Classification of Mail Matter, Et Cetera. [publisher not identified], 1900.