MANNING,CHRISTOPHER D. & RAGHAVAN,PRABHAKAR(et-al) <br/><br/>
INTRODUCTION TO INFORMATION RETRIEVAL. 

 -  Cambridge University Press.  2008 
 - 482 p. 
<br/><br/><label>ISBN: </label>9780521865715 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural language : Information Retrieval
<br/><br/><label>Dewey Class. No.: </label>006.35  / M15