TY  - GEN
AU  - Comaromi, John P.
AU  - Sajita, M.P.
TI  - Exercises in the 20th edition of  the  dewey decimal classification:  
SN  - 8120717201
U1  - 025.431 
PY  - 1990///
CY  - New Delhi
PB  - Sterling publishers 
KW  - Library & information science
ER  -