O?Brien, Robert, <br/><br/>
Machines, 
by Robert O?Brien and the editors of Life. 
 - New York,  Time, inc.  [1964] 
 - 200 p.  illus. (part col.) ports.  28 cm. 
<br/><br/>Bibliography: p. 196. 
<br/><br/><label>ISBN: </label>0705400077 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Machinery.