The Preas index system,  principles application and prospects,  proceedings of the international Precis worksohp sponsored by the college of library and imformation services of the university of Marulqnd  
edited by H.H. Wellisch.  
 - New York   H.W. Wilson  1967 
 - 211p.; 22cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Information organization ; Indexing.
<br/><br/><label>Dewey Class. No.: </label>29.5  / P87P