Blake, J., & Ernst, B. (1976). The great perpetual learning machine: Being a stupendous collection of ideas, games, experiments, activities, and recommendations for further exploration, with tons of illustrations. Little, Brown.
Цитирование в стиле Чикаго (17-е изд.)Blake, Jim, и Barbara Ernst. The Great Perpetual Learning Machine: Being a Stupendous Collection of Ideas, Games, Experiments, Activities, and Recommendations for Further Exploration, with Tons of Illustrations. Boston: Little, Brown, 1976.
Цитирование MLA (8-е изд.)Blake, Jim, и Barbara Ernst. The Great Perpetual Learning Machine: Being a Stupendous Collection of Ideas, Games, Experiments, Activities, and Recommendations for Further Exploration, with Tons of Illustrations. Little, Brown, 1976.
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