National Compensation Survey: Seattle-Tacoma-Bremerton, WA, December 1997 : Bulletin of the United States Bureau of Labor Statistics, No. 3090-39
United States. Bureau of Labor Statistics. "National Compensation Survey: Seattle-Tacoma-Bremerton, WA, December 1997 : Bulletin of the United States Bureau of Labor Statistics, No. 3090-39," National Compensation Survey (Wages and Salaries) (Revised March 1999). https://fraser.stlouisfed.org/title/6009/item/582279, accessed on April 18, 2024.
United States Bureau of Labor Statistics