Khan, G. S., & Aḥmad, S. (1978). Report of the study sub-group on irrigated and rainfed agriculture husbandry training in Pakistan. University of Agriculture.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Khan, Ghulam Subhani, و Saʻīd Aḥmad. Report of the Study Sub-group on Irrigated and Rainfed Agriculture Husbandry Training in Pakistan. Faisalabad [Pakistan]: University of Agriculture, 1978.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Khan, Ghulam Subhani, و Saʻīd Aḥmad. Report of the Study Sub-group on Irrigated and Rainfed Agriculture Husbandry Training in Pakistan. University of Agriculture, 1978.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.