Pandey, G N .
Environmental management / - New Delhi : Vikas Publishing House , 2001. - 398p. ;
81-259-0292-9
Environmental management
658.4033 / PAN/E
Environmental management / - New Delhi : Vikas Publishing House , 2001. - 398p. ;
81-259-0292-9
Environmental management
658.4033 / PAN/E