Decisions made under agreement between District no. 18, United Mine Workers of America and the Western Coal Operators' Association, November 17th, 1911 to March 31st, 1915
Contributors: Western Coal Operators' Association
Publisher: The Union
Published: 1915
Place of publication: Calgary?
Language: eng
Number of pages: 45
Subjects: Coal mines and mining; Coal miners; Charbon; Mines et extraction; Mineurs de charbon