Britannica yearbook of science and the future / 
Encyclopeadia Britanica ; edited by Richard G. Young. 
 - Chicago :  Encyclopaedia Britannica, Inc.,  c1969. 
 - 448 p. :  Col. ill. ;  27 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>85229 1450 :  [N.A.] 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Dictionaries and Encyclopeadia.<br/>Encyclopeadia--Science.<br/>Encyclopaedia--Britannica.
<br/><br/><label>Dewey Class. No.: </label>L 503