Directory of National Unions and Employee Associations, 1977 : Bulletin of the United States Bureau of Labor Statistics, No. 2044
United States. Bureau of Labor Statistics. "Directory of National Unions and Employee Associations, 1977 : Bulletin of the United States Bureau of Labor Statistics, No. 2044," Directory of National Unions and Employee Associations (1979). https://fraser.stlouisfed.org/title/4410/item/499538, accessed on April 19, 2024.