South Africa. Dept. of Health. (1979). The use of alcohol by young people: Moderation or dependence. Dept. of Health.
Dyfyniad Arddull ChicagoSouth Africa. Dept. of Health. The Use of Alcohol by Young People: Moderation or Dependence. Pretoria: Dept. of Health, 1979.
Dyfyniad MLASouth Africa. Dept. of Health. The Use of Alcohol by Young People: Moderation or Dependence. Dept. of Health, 1979.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.