Sobel, D. (2016). Nature preschools and forest kindergartens: The handbook for outdoor learning (First edition.). Redleaf Press.
Цитирование в стиле Чикаго (17-е изд.)Sobel, David. Nature Preschools and Forest Kindergartens: The Handbook for Outdoor Learning. First edition. St. Paul, MN: Redleaf Press, 2016.
Цитирование MLA (8-е изд.)Sobel, David. Nature Preschools and Forest Kindergartens: The Handbook for Outdoor Learning. First edition. Redleaf Press, 2016.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.