Dyfyniad APA

Clark, D. W. (1981). Preventive and community medicine (2ª ed.). Little, Brown.

Dyfyniad Arddull Chicago

Clark, Duncan W. Preventive and Community Medicine. 2ª ed. Little, Brown, 1981.

Dyfyniad MLA

Clark, Duncan W. Preventive and Community Medicine. 2ª ed. Little, Brown, 1981.

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