APA (7th ed.) Citation

United States. Postmaster General. (1909). Scheme of city distribution for use in post office at Columbus, Ohio; corrected to May 1, 1909. GPO.

Chicago Style (17th ed.) Citation

United States. Postmaster General. Scheme of City Distribution for Use in Post Office at Columbus, Ohio; Corrected to May 1, 1909. [Washington]: GPO, 1909.

MLA (9th ed.) Citation

United States. Postmaster General. Scheme of City Distribution for Use in Post Office at Columbus, Ohio; Corrected to May 1, 1909. GPO, 1909.

Warning: These citations may not always be 100% accurate.