TY  - BOOK
AU  - Alahakoon, Uditha Tr.
TI  - DDC 23: Dewy Decimal Classification
SN  - 9789557688152
U1  - 025.3.019 
PY  - 2019///,
CY  - Gampaha
PB  - Nine Publishing
KW  - DDC
ER  -