World Health Organization. (1981). International code of marketing of breast-milk substitutes. World Health Organization ; Obtainable from WHO Publications Centre.
Chicago Style aipamenaWorld Health Organization. International Code of Marketing of Breast-milk Substitutes. Geneva : Albany, N.Y.: World Health Organization ; Obtainable from WHO Publications Centre, 1981.
MLA aipamenaWorld Health Organization. International Code of Marketing of Breast-milk Substitutes. World Health Organization ; Obtainable from WHO Publications Centre, 1981.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.