por Biswas, Asit K [editor] | Agarwal, S. B. C [editor] | Pollution Control Research Institute (Hardwar, India) | International Conference on Environmental Impact Assessment (1991 : New Delhi, India).
por Biswas, Asit K [editor] | Khoshoo, T. N, 1927- [editor] | Khosla, Ashok [editor] | International Society for Ecological Modelling.