Forman, D., & Kinlen, L. (1991). Declining incidence of gastric cancer.
芝加哥风格引文Forman, D., 与 L. Kinlen. Declining Incidence of Gastric Cancer. 1991.
MLA引文Forman, D., 与 L. Kinlen. Declining Incidence of Gastric Cancer. 1991.
警告：这些引文格式不一定是100％准确.
APA引文