APA
                M. kalpana, M.B. Chetti Department of Crop Physiology, . (2000). Morpho-physiological traits associated with productivity in cowpea (Vigna ungiculata (L.) Walp). Dharwad: University of Agricultural Sciences Dharwad.
                
                Chicago
                M. kalpana, M.B. Chetti Department of Crop Physiology, . 2000. Morpho-physiological traits associated with productivity in cowpea (Vigna ungiculata (L.) Walp). Dharwad: University of Agricultural Sciences Dharwad.
                
                Harvard
                M. kalpana, M.B. Chetti Department of Crop Physiology, . (2000). Morpho-physiological traits associated with productivity in cowpea (Vigna ungiculata (L.) Walp). Dharwad: University of Agricultural Sciences Dharwad.
                
                MLA
                M. kalpana, M.B. Chetti Department of Crop Physiology, . Morpho-physiological traits associated with productivity in cowpea (Vigna ungiculata (L.) Walp). Dharwad: University of Agricultural Sciences Dharwad. 2000.