Hock, Seth A. <br/><br/>Understanding and using PFS:  First Choice Seth A. Hock  -- St. Paul, M.N.  West Pub.  1989 <br/>xiii, 239 p.  ill.  25 cm. <br/><br/> Includes index. <br/><br/><label>ISBN: </label>0314471642 <br/><br/><label>Subjects--Topical Terms: </label><br/>PFS First choice.<br/><br/><label>Dewey Class. No.: </label>GC 005.369 H654 1989