Annual Report of the Director Geophysical Laboratory 1967 - 1968, NO. 1520
Washington, D. C. Carnegie Institution, 1969. Reprinted. softcover, 75 - 277 pages, illustrated, 4 plates in rear of book. A creative enterprise depends for its success first on gifted people. Over the years, the Geophysical Laboratory has had its share of them. DU2. More


















