APA način citiranja

Vaira, D., Miglioli, M., Mulè, P., Holton, J., Menegatti, M., Vergura, M., . . . Barbara, L. (1994). Prevalence of peptic ulcer in Helicobacter pylori positive blood donors.

Čikaški stil citiranja

Vaira, D., et al. Prevalence of Peptic Ulcer in Helicobacter Pylori Positive Blood Donors. 1994.

MLA način citiranja

Vaira, D., et al. Prevalence of Peptic Ulcer in Helicobacter Pylori Positive Blood Donors. 1994.