TY  - BOOK
ED  - United States National Committee for the International Geophysical Y ear
TI  - Geophysics and the IGY : : proceedings of the symposium at the open ing of the International Geophysical Year, conducted by the United Stat es National Committe for the International Geophysical Year, National A cademy of Sciences, Washington, D. C., June 28-29, 1957/ 
U1  - 551 UNI 
PY  - 1958///
CY  - Washington : 
PB  - American National Research Council, 
ER  -