TY  - BOOK
T1  - Minerals yearbook 1961
LA  - English
PP  - Washington
PB  - U.S. Government Printing Office
YR  - 1962
UL  - https://tuklas.up.edu.ph/Record/UP-99796217613056904
CN  - TN 23 U612 1961
KW  - Minerals : Periodicals.
ER  -