TY  - BOOK
AU  - Comaromi,John P.
AU  - Satija,M P.
TI  - Exercises in the 20th edition of the dewey decimal classification / 
SN  - 8120711521
U1  - 025.431 
PY  - 1990///
CY  - New Delhi : 
PB  - Sterling Publishers , 
KW  - CLASSIFICATION, DEWEY DECIMAL
N1  - Includes index
ER  -