Dyfyniad APA

(1977). Rubella vaccination in independent schools.

Dyfyniad Arddull Chicago

Rubella Vaccination in Independent Schools. 1977.

Dyfyniad MLA

Rubella Vaccination in Independent Schools. 1977.

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