APA استشهاد

Calvert, P. C. (1999). The South the North and the environment. Pinter.

استشهاد بنمط شيكاغو

Calvert, Peter Calvert. The South the North and the Environment. London: Pinter, 1999.

MLA استشهاد

Calvert, Peter Calvert. The South the North and the Environment. Pinter, 1999.