United States. Bureau of Labor Statistics. "National Compensation Survey: Seattle-Tacoma-Bremerton, WA, February 1999 : Bulletin of the United States Bureau of Labor Statistics, No. 3095-45,"
National Compensation Survey (Wages and Salaries)
(August 1999).
https://fraser.stlouisfed.org/title/6009/item/582335, accessed on December 16, 2025.