Dyfyniad APA

Oswald, N. C., & Fry, J. (1962). Diseases of the respiratory system. F. A. Davis.

Dyfyniad Arddull Chicago

Oswald, Neville C., and John Fry. Diseases of the Respiratory System. Philadelphia: F. A. Davis, 1962.

Dyfyniad MLA

Oswald, Neville C., and John Fry. Diseases of the Respiratory System. F. A. Davis, 1962.

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