TY  - BOOK
AU  - British Standard Instiute,.
ED  - British Standard Institute^cLondon                                                                                                                                                                                                                             . 
TI  - Universal decimal classification / 
U1  - 023.432 
PY  - 1993///
CY  - London : 
PB  - BSI standard , 
KW  - UNIVERSAL DECIMAL CLASSIFICATIONS (UDC)
N1  - NULL
ER  -