Sapru, R.K. .
Environment management in India / edited by Sapru R K. - New Delhi : Ashish Publishing House , 1987 - 2 vol. :
81-7024-092-1
Biology-Environment-India
G:55(8) / M7.1
Environment management in India / edited by Sapru R K. - New Delhi : Ashish Publishing House , 1987 - 2 vol. :
81-7024-092-1
Biology-Environment-India
G:55(8) / M7.1