Hobbs, Betty C. & Gilbert, richard J. <br/><br/>
Food poisoning and food hygiene 

 - 4th ed. 
 - Edward arnold pub. ltd., London  1978 
<br/><br/><label>ISBN: </label>0 7131 4355 X 
<br/><br/><label>Dewey Class. No.: </label>615.954 Hob/Gil