Cita APA

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

Chicago Edition Citation

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

Cita MLA

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

Atenció: Aquestes cites poden no estar 100% correctes.