Dyfyniad APA

(1928). Report of the British Committee on Vaccination.

Dyfyniad Arddull Chicago

Report of the British Committee On Vaccination. 1928.

Dyfyniad MLA

Report of the British Committee On Vaccination. 1928.

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