Wages and hours in anthracite mining, June, 1914-October, 1921, inclusive
By: ... National industrial conference board.
Series: Its Research report,; no. 47
Publisher: The Century co.
Published: 1922
Place of publication: New York
Language: eng
Number of pages: 67
Subjects: Coal miners -- Pennsylvania; Wages -- Coal miners -- Pennsylvania; Cost and standard of living -- Pennsylvania; Hours of labor