APA
                    Nyer E.K, . (1987). Ground Water Treatment Technology. New Delhi: C.B.S.Publications & Distributers,NewDelhi.
                
                    Chicago
                    Nyer E.K, . 1987. Ground Water Treatment Technology. New Delhi: C.B.S.Publications & Distributers,NewDelhi.
                
                    Harvard
                    Nyer E.K, . (1987). Ground Water Treatment Technology. New Delhi: C.B.S.Publications & Distributers,NewDelhi.
                
                    MLA
                    Nyer E.K, . Ground Water Treatment Technology. New Delhi: C.B.S.Publications & Distributers,NewDelhi. 1987.