United States. Postmaster General. (1930). Adjustment of errors made in reporting envelope increase. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Postmaster General. Adjustment of Errors Made in Reporting Envelope Increase. Washington: U.S. GPO, 1930.
MLA (9th ed.) CitationUnited States. Postmaster General. Adjustment of Errors Made in Reporting Envelope Increase. U.S. GPO, 1930.
Warning: These citations may not always be 100% accurate.