Heitel, C., & Damerow, P. (1989). Mathematics, education and society: Reports and papers presented in .. Division of Science, Technical and Environmental Education, Unesco.
Citace podle Chicago (17th ed.)Heitel, Christine, a Peter Damerow. Mathematics, Education and Society: Reports and Papers Presented in .. Paris: Division of Science, Technical and Environmental Education, Unesco, 1989.
Citace podle MLA (9th ed.)Heitel, Christine, a Peter Damerow. Mathematics, Education and Society: Reports and Papers Presented in .. Division of Science, Technical and Environmental Education, Unesco, 1989.
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