Thornley, G C <br/><br/>
Prower and progress / 
Thornley, G C 
 -  Longman Green And Co. Ltd., London,  1962 
 - p. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering & allied operations
<br/><br/><label>Dewey Class. No.: </label>620 THO-P