The Book of popular science /   4 

 - ط.1. 
 - New York  :  Grolier ،  1974. 
 - PC  : P 454  ؛  26 CM. 
<br/><br/><label>ISBN: </label>071721205X   
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology<br/>Natural History
<br/><br/><label>Dewey Class. No.: </label>500 /  B