APA استشهاد

Hobbs, B. C., & Roberts, D. (1998). Food poisoning and food hygiene (6th ed.). Arnold.

استشهاد بنمط شيكاغو

Hobbs, Betty C., و Diane Roberts. Food Poisoning and Food Hygiene. 6th ed. London: Arnold, 1998.

MLA استشهاد

Hobbs, Betty C., و Diane Roberts. Food Poisoning and Food Hygiene. 6th ed. Arnold, 1998.