Biological indicators and indices of environmental pollution - Proceeding of the workshop Biological indices of environmental pollution (21-23 Sep. 1981 : Osman University , Hyderabad); Zafar, A. R.; Central Board for the Prevention and Control of Water Pollution (New Delhi : aCentral Board for the Prevention and Control of Water Pollution, 1982)
Government publication
Keywords: Environmental protection -- Social aspects -- India; Environmental policy -- Social aspects -- India