APA (7th ed.) Citation

United States. Post Office Department. (1926). Correction of objectionable practices in addressing and preparing 2nd-class matter for mailing. GPO.

Chicago Style (17th ed.) Citation

United States. Post Office Department. Correction of Objectionable Practices in Addressing and Preparing 2nd-class Matter for Mailing. [Washington]: GPO, 1926.

MLA (9th ed.) Citation

United States. Post Office Department. Correction of Objectionable Practices in Addressing and Preparing 2nd-class Matter for Mailing. GPO, 1926.

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