Wolff, Robert Paul. <br/><br/>
About philosophy / 
Robert Paul Wolff. 
 - 4th ed. 
 - Englewood Cliffs, N.J. :  Prentice Hall,  c1989. 
 - xii, 436 p. :  ill. ;  25 cm. 
<br/><br/> Includes Bibliography: p. 425-428 and  index. 
<br/><br/><label>ISBN: </label>0130004316 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Philosophy--Introductions.
<br/><br/><label>LC Class. No.: </label>BD21  / .W64 1989 
<br/><br/><label>Dewey Class. No.: </label>100