GCA Corporation.
Geophysics Corporation of America staff biographies, circa 1964.
With lists of publications and reports for each individual.
GCA Corporation.
GCA Corporation -- Officials and employees.
Geophysics -- Publishing.
Geophysicists -- Biography.
Institutional History
Physics -- Publishing.
Physics -- Biography.
Bibliographies. aat aat
GCA Corporation.
AIP-ICOS
American Institute of Physics. Niels Bohr Library & Archives. One Physics Ellipse, College Park, MD 20740, USA