Engle, N. H. (1943). Manpower and purchasing power in Washington: A statistical appraisal of the post-war market. Prepared for the State Committee for Post-victory Employment. Bureau of Business Research, College of Economics and Business, University of Washington.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Engle, Nathanael H. Manpower and Purchasing Power in Washington: A Statistical Appraisal of the Post-war Market. Prepared for the State Committee for Post-victory Employment. [Seattle]: Bureau of Business Research, College of Economics and Business, University of Washington, 1943.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Engle, Nathanael H. Manpower and Purchasing Power in Washington: A Statistical Appraisal of the Post-war Market. Prepared for the State Committee for Post-victory Employment. Bureau of Business Research, College of Economics and Business, University of Washington, 1943.