Dahlberg, Ingetraut <br/><br/>
Ontical Structures and Universal Classification 
/ by Ingetraut Dahlberg 
 - Bangalore:  Sarada Ranganathan Endowment for Library Science,  1978. 
 - xii,64p. 
<br/><br/><label>Dewey Class. No.: </label>025.4  / DAH/O