TY  - BOOK
AU  - KOSCHMANN A.H. Y OTRO
TI  - PRINCIPAL GOLD PRODUCING DISTRICTS OF THE UNITED STATES
T2  - 0
U1  - 549.23 
PY  - 1968///
CY  - U.S.A.
KW  - CIENCIAS PURAS
N1  - ABSTRACT/ALABAMA/ALASKA/ARIZONA
ER  -