Nag, P. Atlas of the city of Calcutta and its environs. P. Nag - 3rd ed. - Kolkata National Atlas & Thematic Mapping Organisation (NATMO) 2010 - 88p. - National Atlas & Thematic Mapping Organisation (NATMO): special atlas series; 1.-1 . ISBN: Subjects--Topical Terms: EP/URP Dewey Class. No.: 912.54147 / NAG-A