Dyfyniad APA

American Social Hygiene Association. Journal of social hygiene. American Social Hygiene Association.

Dyfyniad Arddull Chicago

American Social Hygiene Association. Journal of Social Hygiene. New York: American Social Hygiene Association.

Dyfyniad MLA

American Social Hygiene Association. Journal of Social Hygiene. American Social Hygiene Association.

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