TY - SER AU - Barber,David A. TI - Ideas and practices related to preharvest food safety for large swine producers in Illinois KW - FOOD SAFETY KW - IF UR - http://lib3.dss.go.th/fulltext/abstract/F1/F1_4.pdf ISSN - 1043-3546 Sources - Dairy, Food and Environmental Sanitation Sources - 22 (12) 2002 : 970-975 ER -