N. Chesworth Food Hygiene Auditing - Gaithersburg Aspen Publication 1999 - 198p N. Chesworth: Food Hygiene Auditing. Gaithersburg. Aspen Publication, 1999. 0-8342-1680-9--(664CHE) ENGLISH ISBN: 0-8342-1680-9 Dewey Class. No.: 664 / CHE