Singh, B. (2017). Objective agronomy: For SAU's entrance, JRF, SRF, ARS, ICAR NET, Ph.D Civil servicces and other comperirive examination. New India Publishing Agency.
استشهاد بنمط شيكاغوSingh, BB. Objective Agronomy: For SAU's Entrance, JRF, SRF, ARS, ICAR NET, Ph.D Civil Servicces and Other Comperirive Examination. New Delhi: New India Publishing Agency, 2017.
MLA استشهادSingh, BB. Objective Agronomy: For SAU's Entrance, JRF, SRF, ARS, ICAR NET, Ph.D Civil Servicces and Other Comperirive Examination. New India Publishing Agency, 2017.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.