LAYSHERAM, KOSYGIN, BIODIVERSITY, ECOLOGY AND CONSERVATION OF RIVERS AND STREAM OF NE INDIA Textual Documents - 1ST. - NEW DELHI AKANSHA PUBLISHING HOUSE 2011 - 373: 20CM+ HB. RUSA MDC GRANT 2014-2017 Subjects--Index Terms: Biodiversity Dewey Class. No.: 333.72