APA استشهاد

Mandal, R. (1981). Statistics for Geographers and Social Scientist. Concept.

استشهاد بنمط شيكاغو

Mandal, R.B. Statistics for Geographers and Social Scientist. New Delhi: Concept, 1981.

MLA استشهاد

Mandal, R.B. Statistics for Geographers and Social Scientist. Concept, 1981.