Postal research and development
Subtitle: hearings before the Subcommittee on Postal Personnel and Modernization of the Committee on Post Office and Civil Service, House of Representatives, Ninety-fifth Congress, second session, April 13 and 18, 1978.
Publisher: U.S. Govt. Print. Off.
Published: 1979
Place of publication: Washington
Language: eng
Number of pages: 74
Subjects: Postal service -- Research -- United States.
Notes: "Serial no. 95-81."