Betty C. Hobbs 
Food poisoning and food hygience. Ed 5 
 - 5th Ed 
 - Baltimore  Edward Arnold  1987 
 - 372p 
Betty C. Hobbs & Diane Roberts: Food poisoning and food hygience. Ed 5.  (5th Ed)  Baltimore.  Edward Arnold, 1987. 0-7131-4516-1--(615.954HOB)   
ENGLISH 
0-7131-4516-1 
615.954  / HOB