Gamma, Erich <br/><br/>
Design Patterns: Elements of Reusable ObjectOriented Software 
Gamma,Erich et al 
 - New York  Addison Wesley  1995 
 - 395  Illustration,index,bibliography,chart and graph 
<br/><br/><label>ISBN: </label>201633612 
<br/><br/><label>Dewey Class. No.: </label>005.117  / G146