APA Alıntı

Singh,R.P, & Zubairul Islam. (2012). Environmental studies. Concept Publishing Co.Pvt Ltd.

Chicago Stili Alıntı

Singh,R.P, ve Zubairul Islam. Environmental Studies. New Delhi: Concept Publishing Co.Pvt Ltd, 2012.

MLA Alıntı

Singh,R.P, ve Zubairul Islam. Environmental Studies. Concept Publishing Co.Pvt Ltd, 2012.