00301nam a2200097Ia 450000500170000000800410001705000220005810000200008024500630010026000400016320251229085043.0251229s9999    xx            000 0 und d  aTP 370 .H9G7 1973  aGraham-Rack, B. 0aHygiene in food manufacturing and handling cB Graham-Rack  aLondonb Food Trade press ltdc1964