APA ציטוט

Levo, Y., & Pick, A. I. (1974). Cullen's Sign, Hepatoma, and α-Fetoprotein.

Citação norma Chicago

Levo, Y., and A. I. Pick. Cullen's Sign, Hepatoma, and α-Fetoprotein. 1974.

ציטוט MLA

Levo, Y., and A. I. Pick. Cullen's Sign, Hepatoma, and α-Fetoprotein. 1974.