TY  - BOOK
AU  - Hawley, Chris  .
TI  - Hazardous materials air monitoring and detection devices / 
SN  - 0-7668-6019-1
U1  - D854(E1981) 
PY  - 2002///
CY  - Singapore : 
PB  - Delmar, Thomson Learning , 
KW  - Hazardous substances
ER  -