Handbook of geophysics and space environments. Scientific editor: Shea L. Valley. Air Force Cambridge Research Laboratories (U.S.) Valley, Shea L., ed. Geophysics. QC806 .U48 551.02 VAH Revision of individual chapters and sections to be issued in the form of Air Force surveys in geophysics. Includes bibliographies. Washington : 1965. 1965. 1965 Text various pagings : eng