TY  - BOOK
AU  - COlin, Creaser  .
AU  - Rupert,Purchase  .
TI  - Food contaminants - sources and surveillance / 
SN  - 0-85186-606-9
U1  - 663 
PY  - 1991///
CY  - Cambridge : 
PB  - The Royal Society of Chemistry , 
ER  -