Cita APA (7a ed.)
Texas public health journal [Tex Public Health J] NLMUID: 101615119.
Cita Chicago Style (17a ed.)
Texas Public Health Journal [Tex Public Health J] NLMUID: 101615119.
Cita MLA (9a ed.)
Texas Public Health Journal [Tex Public Health J] NLMUID: 101615119.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.