National child immunization programs [electronic resource] : hearing before the Subcommittee on Oversight and Investigations of the Committee on Interstate and Foreign Commerce, House of Representatives, Ninety-fifth Congress, first session, August 31, 1977.
- Washington : U.S. Govt. Print. Off., 1977.
- Government document
iv, 72 p. : ill. ;
- Serial - House, Committee on Interstate and Foreign Commerce ; no. 95-49
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