Union rules and practices limiting output and impairing efficiency in the anthracite fields, submitted to the United States Coal Commission on behalf of the General Policies Committee of Anthracite Operators, May 5, 1923
Contributors: United States. Coal Commission
Series: Pamphlets in American history -- L 669
Publisher: publisher not identified
Published: 1979
Place of publication: Philadelphia?]
Language: eng
Number of pages: 12
Subjects: Coal mines and mining; Labor productivity
Notes: Cover title.

Microfiche. Sanford, N.C. : Microfilming Corp. of America, 1979. 1 sheet ; 11 x 15 cm. (Pamphlets in American history : Labor ; L 669)