Dyfyniad APA

Scwartz, S. I. (1984). Principles of surgery (4th edition.). JMC Press.

Dyfyniad Arddull Chicago

Scwartz, Saymour I. Principles of Surgery. 4th edition. Quezon City: JMC Press, 1984.

Dyfyniad MLA

Scwartz, Saymour I. Principles of Surgery. 4th edition. JMC Press, 1984.

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