1. Beyers WB et al. (2010) 2007 Washington input-output model. Washington State Office of Financial Management
2. Birch DL (1988) Employment growth in Washington State. Washington State Department of Trade and Economic Development
3. Bourque PJ, Conway RS Jr (1977) The 1972 Washington input-output study. Graduate School of Business Administration, University of Washington
4. Bourque PJ, Weeks E (1969) Detailed input-output tables for Washington State, 1963. Washington State University
5. Chase RA, Bourque PJ, Conway RS Jr (1993) Washington State input-output study, 1987. Washington State Office of Financial Management