APA استشهاد

Oldfield, F. (2005). Environmental change: Key issues and alternate approaches. Cambridge University Press.

استشهاد بنمط شيكاغو

Oldfield, Frank. Environmental Change: Key Issues and Alternate Approaches. Cambridge: Cambridge University Press, 2005.

MLA استشهاد

Oldfield, Frank. Environmental Change: Key Issues and Alternate Approaches. Cambridge University Press, 2005.