Title :
Statistics and technology of the precious metals
Author Statement :
by S. F. Emmons,G. F. Backer
Publication :
Government Printing office
Collation :
xiv, 541 p.: illus.; 28 cm
Notes :
"U.M.I. books on demand"
Subject :
Precious metals
ADDED ENTRIES :
Becker, G. F
ETC :
Prepard under the direction of clarence king
