APA ציטוט

Najma,Heptulla. (1993). Environment protection in developing countries. Oxford & IBH Publishing Co.Pvt.Ltd.

Chicago Edition Citation

Najma,Heptulla. Environment Protection in Developing Countries. New Delhi: Oxford & IBH Publishing Co.Pvt.Ltd, 1993.

ציטוט MLA

Najma,Heptulla. Environment Protection in Developing Countries. Oxford & IBH Publishing Co.Pvt.Ltd, 1993.