Cleverdon, Cyril <br/><br/>
Factors determining the performance of indexing systems:   Vol. I Design  

 - Cranfield:  The college of Aeronautics,  1968 
 - 114p. 
 - ASLIB cranfield research project .
<br/><br/> Vol. 1 (Design), Part 2. (Text)  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Performance indexing 
<br/><br/><label>Subjects--Index Terms: </label>Research papers  Test collection  
<br/><br/><label>Universal Decimal Class. No.: </label>D 001.815(047)   / K6