Durr, William K. <br/><br/>
Signposts / 
William K. Durr, Jean M. Lepere & Mary Lou Alsin. 
 - Boston :   Houghton Mifflin,   c 1971. 
 - 221 p. :  ills., tabs., figs., maps ;  24 cm. 
<br/><br/>Includes index. 
<br/><br/>   
<br/><br/><label>ISBN: </label>0-395-16170-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Readers
<br/><br/><label>Dewey Class. No.: </label>810.8 / D938s