Cita APA (7a ed.)
National Council of Teachers of Mathematics. (1970). Geometría Informal. TRILLAS.
Cita Chicago Style (17a ed.)
National Council of Teachers of Mathematics. Geometría Informal. México D. F.: TRILLAS, 1970.
Cita MLA (9a ed.)
National Council of Teachers of Mathematics. Geometría Informal. TRILLAS, 1970.
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