Radford, L., Schubring, G., & Seeger, F. (2008). Semiotics in mathematics education: Epistemology, history, classroom, and culture. Sense Publishers.
Citace podle Chicago (17th ed.)Radford, Luis, Gert Schubring, a Falk Seeger. Semiotics in Mathematics Education: Epistemology, History, Classroom, and Culture. Rotterdam: Sense Publishers, 2008.
Citace podle MLA (9th ed.)Radford, Luis, et al. Semiotics in Mathematics Education: Epistemology, History, Classroom, and Culture. Sense Publishers, 2008.
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