APA način citiranja

Richter, E. R., & al-Sheddy, I. (1990). Microbiological quality and safety of zoo food.

Čikaški stil citiranja

Richter, E R., i I. al-Sheddy. Microbiological Quality and Safety of Zoo Food. 1990.

MLA način citiranja

Richter, E R., i I. al-Sheddy. Microbiological Quality and Safety of Zoo Food. 1990.

Upozorenje: Ovi citati možda nisu uvijek 100% točni.