Cita APA (7a ed.)
Michigan journal of public health [Mich J Public Health] NLMUID: 101312785.
Cita Chicago Style (17a ed.)
Michigan Journal of Public Health [Mich J Public Health] NLMUID: 101312785.
Cita MLA (9a ed.)
Michigan Journal of Public Health [Mich J Public Health] NLMUID: 101312785.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.