Bharuch, Erach Textbook of environmental studies : for undergraduate courses 3rd ed. - Hyderabad Universities press 2021 - xiv, 266 E ISBN: 9789389211788 Subjects--Topical Terms: NATURAL RESOURCES Subjects--Facted Index Terms: NATURAL RESOURCESSOCIAL SCIENCESCONSERVATIONEnvironmental StudiesEcosystem