Avery, Ron. <br/><br/>
A concise history of Philadelphia / 
By Ron Avery. 
 - Philadelphia :  Otis Books,  1952. 
 - 95 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0965882519 
<br/><br/><label>LCCN: </label>99075779 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Philadelphia (Pa.)--History.