WHO Collaborative Study on Breast-feeding. (1981). Contemporary patterns of breast-feeding: Report on the WHO Collaborative Study on Breast-feeding. World Health Organization.
Citace podle Chicago (17th ed.)WHO Collaborative Study on Breast-feeding. Contemporary Patterns of Breast-feeding: Report on the WHO Collaborative Study on Breast-feeding. Geneva: World Health Organization, 1981.
Citace podle MLA (9th ed.)WHO Collaborative Study on Breast-feeding. Contemporary Patterns of Breast-feeding: Report on the WHO Collaborative Study on Breast-feeding. World Health Organization, 1981.
Upozornění: Tyto citace jsou generovány automaticky. Nemusí být zcela správně podle citačních pravidel..