Gamma Erich <br/><br/>
Design patterns    Elenents of reusable object-oriented software 

 -  1995 
<br/><br/><label>Standard No.: </label>131938 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>D6,8(B2897):4, N5