Library of Congress. Science and Technology Division. Report on the U.S. program for the international geophysical year : July 1, 1957-December 31, 1958.

Library of Congress. Science and Technology Division.

Report on the U.S. program for the international geophysical year : July 1, 1957-December 31, 1958.

Institutional History

International Geophysical Year, 1957-1958.

United States. National Committee for the International Geophysical Year.