Rosskopf, M., Steffe, L. P., & Taback, S. (1971). Piagetian cognitive-development research and mathematical education: Proceedings of a conference conducted at Columbia university, October 1970. National council of teachers of mathematics.
Style de citation Chicago (17e éd.)Rosskopf, Myron, Leslie P. Steffe, et Stanley Taback. Piagetian Cognitive-development Research and Mathematical Education: Proceedings of a Conference Conducted at Columbia University, October 1970. Washington (D.C.): National council of teachers of mathematics, 1971.
Style de citation MLA (8e éd.)Rosskopf, Myron, et al. Piagetian Cognitive-development Research and Mathematical Education: Proceedings of a Conference Conducted at Columbia University, October 1970. National council of teachers of mathematics, 1971.