Dyfyniad APA

SpringerLink (Online service) & Norton, J. A. (2008). Surgery: Basic science and clinical evidence (2nd ed.). Springer New York.

Dyfyniad Arddull Chicago

SpringerLink (Online service) and Jeffrey A. Norton. Surgery: Basic Science and Clinical Evidence. 2nd ed. New York: Springer New York, 2008.

Dyfyniad MLA

SpringerLink (Online service) and Jeffrey A. Norton. Surgery: Basic Science and Clinical Evidence. 2nd ed. Springer New York, 2008.

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