Kelly, Deryk T. <br/><br/>
Science fairs  : school science & technology 2 

 - London  ; The English Universities Press  , 1970 
 - 163p. 
<br/><br/><label>ISBN: </label>0340152168 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Dewey Class. No.: </label>500  / KEL