APA aipamena

Forman, D., & Kinlen, L. (1991). Declining incidence of gastric cancer.

Chicago Style aipamena

Forman, D., and L. Kinlen. Declining Incidence of Gastric Cancer. 1991.

MLA aipamena

Forman, D., and L. Kinlen. Declining Incidence of Gastric Cancer. 1991.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.