TY  - BOOK
AU  - Dahlberg,Ingetraut
TI  - Ontical structures and universal classification / 
T2  - Sarada Ranganathan Endowment for Library Science Series, 11, 
U1  - 025.432 
PY  - 1978///
CY  - Bangalore : 
PB  - Sarada Ranganathan Endowment for Library Science , 
KW  - UNIVERSAL DECIMAL CLASSIFICATION
N1  - Includes references and index
ER  -