Shepherd, David L. <br/><br/>
From pilots to plastics / 
David L. Shepherd, Rita A. Ragger, Wilbert S. Schaefer. 
 - 1st  ed. 
 - New York :  Harper & Row,  1969. 
 - 543  p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>College readers.