Chaudhry, M. R., & Ihsanullah. (1989). Effect of different mesh sized gypsum on the reclamation of saline-sodic soil. Directorate of Mona Reclamation Experimental Project, Planning and Investigation Organization.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Chaudhry, Muhammad Ramzan, و Ihsanullah. Effect of Different Mesh Sized Gypsum on the Reclamation of Saline-sodic Soil. Bhalwal: Directorate of Mona Reclamation Experimental Project, Planning and Investigation Organization, 1989.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Chaudhry, Muhammad Ramzan, و Ihsanullah. Effect of Different Mesh Sized Gypsum on the Reclamation of Saline-sodic Soil. Directorate of Mona Reclamation Experimental Project, Planning and Investigation Organization, 1989.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.