Merrill, William Stetson <br/><br/>
Code for classifiers:   Principles governing the consistent placing of books in a system of classification 

 - 2nd ed. 
 - Chicago:   American Library Association,   1939 
 - xi, 177p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library science
<br/><br/><label>Subjects--Index Terms: </label>Classification, Dewey decimal Church history 
<br/><br/><label>Universal Decimal Class. No.: </label>D 025.4  / G9;4