(1980). U.S. Postal Service Plan for nine-digit zip code: Hearing before a subcommittee of the Committee on Government Operations, House of Representatives, Ninety-sixth Congress, second session, September 17, 1980.
Citace podle Chicago (17th ed.)U.S. Postal Service Plan for Nine-digit Zip Code: Hearing Before a Subcommittee of the Committee on Government Operations, House of Representatives, Ninety-sixth Congress, Second Session, September 17, 1980. 1980.
Citace podle MLA (9th ed.)U.S. Postal Service Plan for Nine-digit Zip Code: Hearing Before a Subcommittee of the Committee on Government Operations, House of Representatives, Ninety-sixth Congress, Second Session, September 17, 1980. 1980.
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