Ries, Al  Jack Trout <br/><br/>
The 22 immutable laws of marketing  : violate them at your own risk! 

 - London   HarperCollins Publishers  1994 
 - xii, 143 p.  : ill.  ; 20.4 cm. 
<br/><br/> Includes index.  
<br/><br/><label>ISBN: </label>9780887306662 (pbk) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Management sciences<br/>Marketing management --Singularity law--Division law--Candor law--Duality law--Focus law--RSBM
<br/><br/><label>Dewey Class. No.: </label>658.8  / RIE