APA
                R. Gururaja, R R Mallikarjunaiah Department of Agricultural Microbiology, . (1983). Interactions among azotobacter chroococcum, glomus fasciculatum and penicillium glaucum on growth and yield of sunflower (Helian. Bangalore: University of Agricultural Sciences, Bangalore.
                
                Chicago
                R. Gururaja, R R Mallikarjunaiah Department of Agricultural Microbiology, . 1983. Interactions among azotobacter chroococcum, glomus fasciculatum and penicillium glaucum on growth and yield of sunflower (Helian. Bangalore: University of Agricultural Sciences, Bangalore.
                
                Harvard
                R. Gururaja, R R Mallikarjunaiah Department of Agricultural Microbiology, . (1983). Interactions among azotobacter chroococcum, glomus fasciculatum and penicillium glaucum on growth and yield of sunflower (Helian. Bangalore: University of Agricultural Sciences, Bangalore.
                
                MLA
                R. Gururaja, R R Mallikarjunaiah Department of Agricultural Microbiology, . Interactions among azotobacter chroococcum, glomus fasciculatum and penicillium glaucum on growth and yield of sunflower (Helian. Bangalore: University of Agricultural Sciences, Bangalore. 1983.