Science and rural development in mountains : ecological , socio-economical and technological aspects  
edited by J.S. Singh, S.P. Singh and C. Shastri 
 - Nainital   gyanodaya Prakashan   c1981 
 - xv,464p.; 22cm. 
<br/><br/><label>Dewey Class. No.: </label>309.26309143  / SIN