Saquing, L. G. (1975). Bicycles as instructional aids in teaching some concepts in elementary mathematics.
Citace podle Chicago (17th ed.)Saquing, Leopoldo G. Bicycles as Instructional Aids in Teaching Some Concepts in Elementary Mathematics. 1975.
Citace podle MLA (9th ed.)Saquing, Leopoldo G. Bicycles as Instructional Aids in Teaching Some Concepts in Elementary Mathematics. 1975.
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