Não informado. (1970). International Journal of Mathematical Education in Science and Technology. John Wiley & Sons.
Chicago-referens (17:e uppl.)Não informado. International Journal of Mathematical Education in Science and Technology. London: John Wiley & Sons, 1970.
MLA-referens (8:e uppl.)Não informado. International Journal of Mathematical Education in Science and Technology. John Wiley & Sons, 1970.
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