एपीए उद्धरण

Khan,S.H. (1987). Teacher's guide environmental studies. Rakesh press.

शिकागो स्टाइल उद्धरण

Khan,S.H. Teacher's Guide Environmental Studies. New delhi: Rakesh press, 1987.

एमएलए उद्धरण

Khan,S.H. Teacher's Guide Environmental Studies. Rakesh press, 1987.