Harlen W & Elstgeest, J. (1992). UNESCO sourcebook for science in the primary school: A workshop approach to teacher education. UNESCO.
Цитирование в стиле Чикаго (17-е изд.)Harlen W и Jos Elstgeest. UNESCO Sourcebook for Science in the Primary School: A Workshop Approach to Teacher Education. Paris: UNESCO, 1992.
Цитирование MLA (8-е изд.)Harlen W и Jos Elstgeest. UNESCO Sourcebook for Science in the Primary School: A Workshop Approach to Teacher Education. UNESCO, 1992.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.