Spikell, M. A. (1993). Teaching mathematics with manipulatives: A resource of activities for the K-12 teachers. Allyn and Bacon.
Цитирование в стиле Чикаго (17-е изд.)Spikell, Mark A. Teaching Mathematics with Manipulatives: A Resource of Activities for the K-12 Teachers. Boston: Allyn and Bacon, 1993.
Цитирование MLA (9-е изд.)Spikell, Mark A. Teaching Mathematics with Manipulatives: A Resource of Activities for the K-12 Teachers. Allyn and Bacon, 1993.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.