Prochaska, James O <br/><br/>
Systems of psychotherapy  a transtheoretical analysis 
James O. Prochaska, John C. Norcross. 
 - 4th ed. 
 - Pacific Grove  Brooks  [n. d.] 
 - xv, 591p.: ill.; 23cm. 
<br/><br/><label>ISBN: </label>0-534-35704-0. 
<br/><br/><label>Dewey Class. No.: </label>616.8914  / P87S