National seminar on resources development and environment in the Himalayan region: New Delhi, (Vigyan Bhavan) 10-13 April 1978: Proceedings 
by National Committee on Environmental Planning and Co-ordination 
 - New Delhi  National Committee on Environmental Planning and Co-ordination  1978 
 - 537p. 
<br/><br/><label>Dewey Class. No.: </label>O91x54 In2n