Cita APA

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

Chicago Edition Citation

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

Cita MLA

Hobbs, Betty C., i Diane Roberts. Food Poisoning and Food Hygiene. 6th ed. Edward Arnold.