Singh, Pritam <br/><br/>
Preparation and evaluation of textbook on general science 

 - New Delhi  ; Ncert  , 1972 
 - vii,113p. 
<br/><br/><label>ISBN: </label> 30 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Dewey Class. No.: </label>500  / SIN