TY  - BOOK
T1  - Practical seismology and seismic prospecting
A1  - Leet, L. Don 1901-1974
LA  - English
PP  - New York, London
PB  - D. Appleton-Century Company, incorporated
YR  - 1938
UL  - http://www.ds.mainlib.upd.edu.ph/Record/UP-99796217612154475
OP  - 430
CN  - QE534 L43
KW  - Seismology : Observations.
KW  - Vibration.
ER  -