APA način citiranja

Zaki, S., Hamed, G., Andraos, A., Aziz, A. A., Fawzy, H., Ragab, F., & Mokhtar, S. (2008). Conventional versus noninvasive ventilation in acute respiratory failure. BioMed Central.

Čikaški stil citiranja

Zaki, SH, G. Hamed, A. Andraos, A Abdel Aziz, H. Fawzy, F. Ragab, i S. Mokhtar. Conventional Versus Noninvasive Ventilation in Acute Respiratory Failure. BioMed Central, 2008.

MLA način citiranja

Zaki, SH, et al. Conventional Versus Noninvasive Ventilation in Acute Respiratory Failure. BioMed Central, 2008.