TY  - BOOK
ED  - United States.
TI  - Minerals yearbook 1972
U1  - 622(058) 
PY  - 1972///
CY  - Washington
PB  - United States Department of the Interior
KW  - MINERALOGIA
KW  - ESTADOS UNIDOS
N1  - En Biblioteca de Ciencias sólo v.2 Area Reports: domestic
ER  -