Williams, T., Moon, A., & Williams, M. (1990). Food, environment, and health: A guide for primary school teachers. World Health Organization.
Цитирование в стиле Чикаго (17-е изд.)Williams, Trefor, Alysoun Moon, и Margaret Williams. Food, Environment, and Health: A Guide for Primary School Teachers. Geneva: World Health Organization, 1990.
Цитирование MLA (9-е изд.)Williams, Trefor, et al. Food, Environment, and Health: A Guide for Primary School Teachers. World Health Organization, 1990.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.