(1983). Productivity measures for selected industries, 1954-82. Washington, D.C: U. S. Department of Labor Bureau of labor Statistics.
استشهاد بنمط شيكاغوProductivity Measures for Selected Industries, 1954-82. Washington, D.C: U. S. Department of Labor Bureau of labor Statistics, 1983.
MLA استشهادProductivity Measures for Selected Industries, 1954-82. Washington, D.C: U. S. Department of Labor Bureau of labor Statistics, 1983.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.