National Council of Applied Economic Research. (1974). Credit requirements for agriculture. National Council of Applied Economic Research.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Council of Applied Economic Research. Credit Requirements for Agriculture. New Delhi: National Council of Applied Economic Research, 1974.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)National Council of Applied Economic Research. Credit Requirements for Agriculture. National Council of Applied Economic Research, 1974.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.