Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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

Atenció: Aquestes cites poden no estar 100% correctes.