Gamma, Erich  Richard Helm  Ralph Johnson  John Vlissides <br/><br/>
Design patterns   elements of reusable object-oriented software  

 - Delhi  Pearson India Education Services Pvt. Ltd  2016,2018 
 - xvii, 380 p.  : ill.  ; 25 cm. 
<br/><br/> Includes appendices, bibliographical references, and index. 
<br/><br/><label>ISBN: </label>0201633612 (pbk), 8131700070  (pbk) 9789332555402 (pbk) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer software<br/>Object-oriented software<br/>Behavioral patterns --Software reusability--Software patterns--Computer science--Structural pattern--Design pattern--User operations--FC
<br/><br/><label>Dewey Class. No.: </label>005.12  / DES