Dyfyniad APA
(1964). Introduction to respiratory diseases (ed.). National Tuberculosis Association.
Dyfyniad Arddull Chicago
Introduction to Respiratory Diseases. ed. U.S.A: National Tuberculosis Association, 1964.
Dyfyniad MLA
Introduction to Respiratory Diseases. ed. National Tuberculosis Association, 1964.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.