Mehta, N. M. (1994). Effort standards and the velocity of production: A theory of time, labor, and wage funds. School of Economics, University of the Philippines.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Mehta, Nimai M. Effort Standards and the Velocity of Production: A Theory of Time, Labor, and Wage Funds. Quezon City: School of Economics, University of the Philippines, 1994.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Mehta, Nimai M. Effort Standards and the Velocity of Production: A Theory of Time, Labor, and Wage Funds. School of Economics, University of the Philippines, 1994.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.