Rosskopf, M. F., & Taback, S. (1971). Piagetian cognitve development research and mathematical education. National Council of Teachers of Mathematics.
Цитирование в стиле Чикаго (17-е изд.)Rosskopf, Myron F., и Stanley Taback. Piagetian Cognitve Development Research and Mathematical Education. Washington: National Council of Teachers of Mathematics, 1971.
Цитирование MLA (9-е изд.)Rosskopf, Myron F., и Stanley Taback. Piagetian Cognitve Development Research and Mathematical Education. National Council of Teachers of Mathematics, 1971.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.