TY  - BOOK
AU  - Koschmann,A.H.
AU  - Bergendahl,M.H.
ED  - United States
TI  - Principal gold-producing districts of the United States
U1  - 553.410973 
PY  - 1968///.
CY  - Washington: 
PB  - U. S. Government Printing Office, 
KW  - Gold mines and mining
KW  - United States
KW  - Gold ores
N1  - Includes bibliographical references (p. 263-276) and index (p. 277-283)
ER  -