Environmental studies/
Purkayastha, G.
Environmental studies/ Gautam Purkayastha. - Guwahati: Kalyani Publishers, - 349 p. ; ill. : 24 cm.
Based on UGC, Dibrugarh University, Gauhati University and Syllabus of other Indian Universities.
Includes bibliographical references.
8127233374
Environmental Science
Environmental Studies
352.6 / PUR
Environmental studies/ Gautam Purkayastha. - Guwahati: Kalyani Publishers, - 349 p. ; ill. : 24 cm.
Based on UGC, Dibrugarh University, Gauhati University and Syllabus of other Indian Universities.
Includes bibliographical references.
8127233374
Environmental Science
Environmental Studies
352.6 / PUR