Hall, Angela Mary <br/><br/>
Case studies of the use of subjects indexes / 
Angela M. Hall 
 - London :  Institution of Electrical Engineers,  1972 
 - 15 p. ;  30 cm. 
 - Information Services in Physics, Electrotechnology, Computers and Control ;  report no. 72 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Subject headings--Library science