Heywood, P. F., & Verrall, J. (1987). Nutrition and health studies in Menyamya District, Morobe Province. PNG Institute of Medical Research.
Chicago (17e ed.) BronvermeldingHeywood, Peter F., en Jo Verrall. Nutrition and Health Studies in Menyamya District, Morobe Province. Madang: PNG Institute of Medical Research, 1987.
MLA (9e ed.) BronvermeldingHeywood, Peter F., en Jo Verrall. Nutrition and Health Studies in Menyamya District, Morobe Province. PNG Institute of Medical Research, 1987.
Let op: Deze citaties zijn niet altijd 100% accuraat.