Dyfyniad APA

Bianchi Porro, G., Lazzaroni, M., & Petrillo, M. (1983). Rising female predominance in incidence of gastric ulcer.

Dyfyniad Arddull Chicago

Bianchi Porro, G., M. Lazzaroni, and M. Petrillo. Rising Female Predominance in Incidence of Gastric Ulcer. 1983.

Dyfyniad MLA

Bianchi Porro, G., M. Lazzaroni, and M. Petrillo. Rising Female Predominance in Incidence of Gastric Ulcer. 1983.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.