TY  - BOOK
AU  - Heiskanen,W.A.
AU  - Vening Meinesz,F.A.
TI  - The earth and its gravity field
U1  - 538.7 
PY  - 1958///
CY  - New York
PB  - McGraw-Hill
KW  - Geomagnetism
KW  - Gravity
KW  - Earth
N1  - Includes bibliographical references and index
ER  -