Negi, S.S. . Environmental Degradation and Crisis in India / Textual Documents S.S. Negi. - 1st ed / - New Delhi : Indus Publishing , 1991. - 344p. : ill. ; 22cm. . Index ISBN: 81-85182-54-X Subjects--Index Terms: Agriculture- Crisis, India Dewey Class. No.: 639.954 / Ne 31 En