Frendenthal, H. (1973). Mathematics as an educational task. Dordrecht (Netherlands): D. Reidel Publishing Company.
Citación estilo ChicagoFrendenthal, Hans. Mathematics As an Educational Task. Dordrecht (Netherlands): D. Reidel Publishing Company, 1973.
Cita MLAFrendenthal, Hans. Mathematics As an Educational Task. Dordrecht (Netherlands): D. Reidel Publishing Company, 1973.
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