APA (7e ed.) Bronvermelding

Heywood, P. F., & Verrall, J. (1987). Nutrition and health studies in Menyamya District, Morobe Province. PNG Institute of Medical Research.

Chicago (17e ed.) Bronvermelding

Heywood, Peter F., en Jo Verrall. Nutrition and Health Studies in Menyamya District, Morobe Province. Madang: PNG Institute of Medical Research, 1987.

MLA (9e ed.) Bronvermelding

Heywood, Peter F., en Jo Verrall. Nutrition and Health Studies in Menyamya District, Morobe Province. PNG Institute of Medical Research, 1987.