APA استشهاد

Agarwal,L C. (2008). Introduction to Geomorphology. pointer.

استشهاد بنمط شيكاغو

Agarwal,L C. Introduction to Geomorphology. jaipur: pointer, 2008.

MLA استشهاد

Agarwal,L C. Introduction to Geomorphology. pointer, 2008.