TY  - BOOK
T1  - Nonmetallic minerals
A1  - Ladoo, Raymond Bardeen, 1893-
A2  - Myers, William Marsh, 1892- 1951, joint author
LA  - English
PP  - New York
PB  - McGraw-Hill
YR  - 1951
ED  - 2nd ed.
UL  - https://ds.mainlib.upd.edu.ph/Record/UP-99796217602799265
OP  - 605
CN  - TN 260 L3 1951
KW  - Mines and mineral resources.
ER  -