Pollard, Sidney. <br/><br/>
The idea of progress  history and society. 

 - [Harmondsworth, Eng.]  Penguin Books  [1971, c1968] 
 - 221 p. 
 - Pelican book .
<br/><br/> 920427 
<br/><br/>Bibliography: p. 206-[216] 
<br/><br/><label>ISBN: </label>0140213864 
<br/><br/><label>LCCN: </label>72175870  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Progress.
<br/><br/><label>LC Class. No.: </label>CB155  / .P55 1971 
<br/><br/><label>Dewey Class. No.: </label>901