APA
                Karthikeyan R, Gundlur S.S, . (2020). Response of Blackgram [Vigna mungo (L.) Hepper] to Soil and Foliar Application of Iron Sulphate and Zinc Sulphate in Vertisol of. Dharwad: University of Agricultural Sciences.
                
                Chicago
                Karthikeyan R, Gundlur S.S, . 2020. Response of Blackgram [Vigna mungo (L.) Hepper] to Soil and Foliar Application of Iron Sulphate and Zinc Sulphate in Vertisol of. Dharwad: University of Agricultural Sciences.
                
                Harvard
                Karthikeyan R, Gundlur S.S, . (2020). Response of Blackgram [Vigna mungo (L.) Hepper] to Soil and Foliar Application of Iron Sulphate and Zinc Sulphate in Vertisol of. Dharwad: University of Agricultural Sciences.
                
                MLA
                Karthikeyan R, Gundlur S.S, . Response of Blackgram [Vigna mungo (L.) Hepper] to Soil and Foliar Application of Iron Sulphate and Zinc Sulphate in Vertisol of. Dharwad: University of Agricultural Sciences. 2020.