Cover image for Hours and earnings in anthracite and bituminous coal mining. Anthracite--1919 and 1920, bituminous--1919.
Hours and earnings in anthracite and bituminous coal mining. Anthracite--1919 and 1920, bituminous--1919.
Title:
Hours and earnings in anthracite and bituminous coal mining. Anthracite--1919 and 1920, bituminous--1919.
Author:
United States. Bureau of Labor Statistics.
Publication Information:
Washington : Govt. Print. Off., 1921.
Physical Description:
114 pages including tables. ; 23 cm.
General Note:
At head of title: U.S. Department of Labor. James J. Davis, secretary. Bureau of Labor Statistics. Ethelbert Stewart, commissioner.

Issued also as House doc. 1030, U.S., 66th Cong., 3d sess.

"Appendix.--Definitions of occupations": p. 111-114.
Language:
English
Format :
Book