Gaya APA

Taback, M, F, R, L, P, S, S. (1970). Piagetian Cognitive- Development Research and Mathematical Education . Columbia: National Council of Teachers of Mathematics.

Gaya MLA

Taback, Myron, F, Rosskopf, Leslie, P, Steffe, Stanley. "Piagetian Cognitive- Development Research and Mathematical Education". Columbia: National Council of Teachers of Mathematics, 1970. .