1971 census of Canada. Economic characteristics, basic distributions = Recensement du Canada 1971. Volume 3, partie 1, Caractéristiques économiques, répartitions de base ; Bulletin 3.1-12
prepared by Department of Industry, Labor, and Human Relations, Division of Employment and Training Policy with the cooperation of Department of Administration, Demographic Services Center [and] Department of Health and Social Services, Wisconsin Resettlement Assistance Office
U.S. Department of Labor, Manpower Administration, Region IX in cooperation with Manpower Administration, U.S. Employment Service and Employment Standards Administration, Office of Federal Contract Compliance