"Agreement : memorandum of agreement between the Northern West Virginia Coal Operators Association and the United Mine Workers of America, of District No. 17, governing operations in the twelve and one-half counties enumerated."; "Northern West Virginia Coal Operators Association. ", "United Mine Workers of America. District 17."; "Collective labor agreements--Coal mining industry--United States."; "[1920?]"; "

Pamphlet.

"; ""; "P12997"; "pec"; "United Mine Workers of America. District 17.", "Collective labor agreements--Coal mining industry--United States.", "Northern West Virginia Coal Operators Association. "; "14256"; .