Conceptual basis of the classification of knowledge :  proceedings of the Ottawa Conference on the Conceptual basis of the classification of knowledge, Oct. 1st - 5th, 1971 / 
edited by Jerzy A. Wojciechowski 
 - Munchen :  Verlag Dokumentation,  1974 
 - 503 p. ;  21 cm. 
<br/><br/> Text in English, French and Russian 
<br/><br/><label>ISBN: </label> USD 45.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classification of sciences--Congresses<br/>Knowledge, Theory of--Congresses
<br/><br/><label>Dewey Class. No.: </label>112