Classification research 
/Proceeding of the second international study conference held hotel Prins Hamlet Elsinore, Denmark 14-18 september,1964 
 - Copenhagen:   Munksgaard,  1965 
 - ix, 563p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library science
<br/><br/><label>Subjects--Index Terms: </label>Classification 
<br/><br/><label>Universal Decimal Class. No.: </label>D 025.4001.5  / K5-;1