National catalogue of international standard book number titles  1985-86 
National Agency for ISBN System (India) 
 - New Delhi  Raja Rammohan Roy Nat. Edu. Resource Centre  1988 
 - x, 318p 
<br/><br/><label>ISBN: </label>8185156042 
<br/><br/><label>Dewey Class. No.: </label>025.3016 N213N