TY  - BOOK
AU  - ,   .
TI  - UDC: Universal Decimal Classification / 
SN  - 978-0-580-45469-1
U1  - 2:51M96 
PY  - 2005///
CY  - London : 
PB  - British Standard Institution , 
KW  - Library- Classification-UDC
ER  -