TY  - BOOK
AU  - Sehgal,R.L.
TI  - Number building in Dewey Decimal Classification, Universal Decimal Classification & Colon Classification
SN  - 8170001560 (hbk.)
PY  - 1993///
CY  - New Delhi
PB  - Ess Ess publications
KW  - Classification
ER  -