United States. Bureau of Labor Statistics. "Wage Chronology: Pacific Longshore Industry, 1934-70 : Bulletin of the United States Bureau of Labor Statistics, No. 1568," Wage Chronology: Pacific Maritime Association and the International Longshoremen's and Warehousemen's Union (1968). https://fraser.stlouisfed.org/title/4901/item/498309, accessed on November 22, 2024.