HOOVER, THEODORE JESSE.
The economics of mining non-ferrous metals; valuation, organization, management.
HOOVER, THEODORE JESSE. The economics of mining non-ferrous metals; valuation, organization, management. © 9Aug33; A65006. Mildred Willis, Hulda MacLean & Louise Hauselt (C); 3Jul61; R278327.
Mildred Willis, Hulda MacLean & Louise Hauselt|C