APA način citiranja

Penfold, R. B., Chisolm, D. J., Nwomeh, B. C., & Kelleher, K. J. (2008). Geographic disparities in the risk of perforated appendicitis among children in Ohio: 2001–2003. BioMed Central.

Čikaški stil citiranja

Penfold, Robert B., Deena J. Chisolm, Benedict C. Nwomeh, i Kelly J. Kelleher. Geographic Disparities in the Risk of Perforated Appendicitis Among Children in Ohio: 2001–2003. BioMed Central, 2008.

MLA način citiranja

Penfold, Robert B., Deena J. Chisolm, Benedict C. Nwomeh, i Kelly J. Kelleher. Geographic Disparities in the Risk of Perforated Appendicitis Among Children in Ohio: 2001–2003. BioMed Central, 2008.