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.