WalFord, a J, ed. <br/><br/>
Guide to reference material 

 - 3rd. ed. 
 - London  Library association  1973 
 - V1.(vii,615p.); 26cm. 
<br/><br/> Contents : V1 - Science and technology 
<br/><br/><label>ISBN: </label>85365357 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Applied sciences<br/>Information media<br/>Information source bibliography<br/>Science technology