Chowdappa P & Singh B. B. (2020). Objective Plant Pathology: For SAUs and ICAR AIEEA PG Entrance Exam Ph.D. JRF SRF Civil Services Agricultural Officers Bank PO and Allied Agricultural Examination. Astral Cracker.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Chowdappa P و Singh B. B. Objective Plant Pathology: For SAUs and ICAR AIEEA PG Entrance Exam Ph.D. JRF SRF Civil Services Agricultural Officers Bank PO and Allied Agricultural Examination. New Delhi: Astral Cracker, 2020.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Chowdappa P و Singh B. B. Objective Plant Pathology: For SAUs and ICAR AIEEA PG Entrance Exam Ph.D. JRF SRF Civil Services Agricultural Officers Bank PO and Allied Agricultural Examination. Astral Cracker, 2020.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.