Author :
Boericke, William Fay, 1884-
Title :
Prospecting and operating small gold placers
Author Statement :
by William F. Boericke
Publication Year :
1933, c1976
Collation :
xi, 144 p. illus., diagrs. 20 cm
Subject :
Gold mines and mining
ADDED ENTRIES :
Title: Gold placers
Title2 :
On cover: Operating small gold placers
Biblography :
Bibliography: p. 134-136