TY  - BOOK
AU  - HEISKANEN, W A
AU  - MEINESZ, F A VENING
TI  - THE EARTH AND ITS GRAVITY FIELD
U1  - H 
PY  - 1958///
CY  - NEW YORK
PB  - McGRAW HILL BOOK COMPANY INC
KW  -  GRAVITATION
KW  -  EARTH
KW  - GEOLOGY
ER  -