Dyfyniad APA

American Public Health Association. American journal of public health: JPH. American Public Health Association.

Dyfyniad Arddull Chicago

American Public Health Association. American Journal of Public Health: JPH. New York, N.Y.: American Public Health Association.

Dyfyniad MLA

American Public Health Association. American Journal of Public Health: JPH. American Public Health Association.

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