Sparck Jones, Karen <br/><br/>
Automatic keyword classification for information retrieval 

 - London:   Butterworths,   1971 
 - vii, 253p. 
<br/><br/><label>ISBN: </label>04087021374 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Information science
<br/><br/><label>Subjects--Index Terms: </label>Information storage Automatic indexing Retrieval systems 
<br/><br/><label>Universal Decimal Class. No.: </label>D 002  /  L1