Salton, Gerard <br/><br/>
A theory of indexing 

 - Philadelphia,  1975 
 - v, 56 p. : gra p.hs ; 25 cm 
<br/><br/><label>ISBN: </label>9780898710151 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Automatic indexing
<br/><br/><label>Dewey Class. No.: </label>025.04 SAL