Dyfyniad APA

Heald, C. B. (1929). THE PRESENT POSITION OF ULTRA-VIOLET LIGHT THERAPY.

Dyfyniad Arddull Chicago

Heald, C. B. THE PRESENT POSITION OF ULTRA-VIOLET LIGHT THERAPY. 1929.

Dyfyniad MLA

Heald, C. B. THE PRESENT POSITION OF ULTRA-VIOLET LIGHT THERAPY. 1929.

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