APA-viite (7. p.)
International Association for Food Protection & Tharp, D. W. (2003). Food protection trends (1a ed.). International Association for Food Protection.
Chicago-viite (17. p.)
International Association for Food Protection ja David W. Tharp. Food Protection Trends. 1a ed. Des Moines, Iowa: International Association for Food Protection, 2003.
MLA-viite (9. p.)
International Association for Food Protection ja David W. Tharp. Food Protection Trends. 1a ed. International Association for Food Protection, 2003.
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