At head of title: Committee print. "Prepared for the Subcommittee on Science, Research, and Development of the Committee on Science and Astronautics, U.S. House of Representatives, Ninety-second Congress, second session." "Serial S."
Includes bibliographical references.
Microfiche. [Bethesda, Md.] : Congressional Information Service, 1972. 11 X 15 cm.