TY  - BOOK
AU  - Howell, Benjamin F.
TI  - Introduction to geophysics
T2  - McGraw-Hill series in the geological sciences
AV  - QE501 .H73
U1  - 551 
PY  - 1959///
CY  - New York
PB  - McGraw-Hill
KW  - Geophysics
N1  - Includes bibliographical references and index
ER  -