Bird, R. <br/><br/>
Algebra of programming. 
By  R. Bird 
 - NULL 
 - NULL  PHI. New Delhi.  NULL 
 - NULL 
<br/><br/> Engineering 
<br/><br/><label>ISBN: </label>NULL 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical