Cover image for Production, employment, and productivity in the mineral extractive industries, 1880-1938
Title:
Production, employment, and productivity in the mineral extractive industries, 1880-1938
Author:
Spencer, Vivian Eberle, 1907-
Publication Information:
Philadelphia, Pa., [publisher not identified], 1940.
Physical Description:
xviii, 168 pages including tables, diagrams ; 26 cm.
General Note:
Photoprinted.
Language:
English
Format :
Book