APA
                D. Shankaranarayana, R. Siddaramappa Department of Soil Science and Agricultural Chemis, . (1988). Effect of sulphur fertilization on the yield and uptake of nutrient sby selected crops in two soils of Karnataka. Bangalore: University of Agricultural Sciences, Bnagalore.
                
                Chicago
                D. Shankaranarayana, R. Siddaramappa Department of Soil Science and Agricultural Chemis, . 1988. Effect of sulphur fertilization on the yield and uptake of nutrient sby selected crops in two soils of Karnataka. Bangalore: University of Agricultural Sciences, Bnagalore.
                
                Harvard
                D. Shankaranarayana, R. Siddaramappa Department of Soil Science and Agricultural Chemis, . (1988). Effect of sulphur fertilization on the yield and uptake of nutrient sby selected crops in two soils of Karnataka. Bangalore: University of Agricultural Sciences, Bnagalore.
                
                MLA
                D. Shankaranarayana, R. Siddaramappa Department of Soil Science and Agricultural Chemis, . Effect of sulphur fertilization on the yield and uptake of nutrient sby selected crops in two soils of Karnataka. Bangalore: University of Agricultural Sciences, Bnagalore. 1988.