Dyfyniad APA

Cecil, R. L., Bennett, J. C., Smith, L. H., & Wyngaarden, J. B. (1992). Cecil textbook of medicine (19th ed.). Philadelphia: Saunders.

Dyfyniad Arddull Chicago

Cecil, Russell L., J. Claude Bennett, Lloyd H. Smith, και James B. Wyngaarden. Cecil Textbook of Medicine. 19th ed. Philadelphia: Saunders, 1992.

Dyfyniad MLA

Cecil, Russell L., J. Claude Bennett, Lloyd H. Smith, και James B. Wyngaarden. Cecil Textbook of Medicine. 19th ed. Philadelphia: Saunders, 1992.

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