Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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