Cita APA

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

Chicago Edition Citation

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

Cita MLA

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

Atenció: Aquestes cites poden no estar 100% correctes.