एपीए उद्धरण

Roy, D. (1998). Enviornment management with Indian experience. A.P.H.

शिकागो स्टाइल उद्धरण

Roy, Dilip. Enviornment Management with Indian Experience. New Delhi: A.P.H, 1998.

एमएलए उद्धरण

Roy, Dilip. Enviornment Management with Indian Experience. A.P.H, 1998.