Dyfyniad APA

American Public Health Association. (1928). American Journal of public health and the nation's health. American Public Health Association.

Dyfyniad Arddull Chicago

American Public Health Association. American Journal of Public Health and the Nation's Health. New York, N.Y.: American Public Health Association, 1928.

Dyfyniad MLA

American Public Health Association. American Journal of Public Health and the Nation's Health. American Public Health Association, 1928.

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