Elrod, J. McRee. <br/><br/>
Choice of subject headings / 
J. McRee Elrod. 
 - Chicago :  Educational Methods,  c1969. 
 - 49 p. :  25 cm. 
 - EMI modern library practices series .
<br/><br/> "An EMI self-instructional program." 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Subject cataloging<br/>Subject headings--Programmed instruction.
<br/><br/><label>Dewey Class. No.: </label>025.3 ELR