Williams, T., Moon, A., & Williams, M. (1990). Food, environment, and health: A guide for primary school teachers. World Health Organization.
Chicago Style (17. basım) AtıfWilliams, Trefor, Alysoun Moon, ve Margaret Williams. Food, Environment, and Health: A Guide for Primary School Teachers. Geneva: World Health Organization, 1990.
MLA (9th ed.) AtıfWilliams, Trefor, et al. Food, Environment, and Health: A Guide for Primary School Teachers. World Health Organization, 1990.
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