United States. Congress. Senate. Committee on Post Offices and Post Roads & ProQuest (Firm). (1940). Permitting official mail of Pan American Sanitary Bureau to be transmitted in penalty envelopes. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Post Offices and Post Roads and ProQuest (Firm). Permitting Official Mail of Pan American Sanitary Bureau to Be Transmitted in Penalty Envelopes. Washington: [publisher not identified], 1940.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Post Offices and Post Roads and ProQuest (Firm). Permitting Official Mail of Pan American Sanitary Bureau to Be Transmitted in Penalty Envelopes. [publisher not identified], 1940.
Warning: These citations may not always be 100% accurate.