Ashlock, R. B. (1983). Guiding each child's learning of mathematics: A diagnostic approach to instruction. C.E. Merrill Pub. Co.
Citace podle Chicago (17th ed.)Ashlock, Robert B. Guiding Each Child's Learning of Mathematics: A Diagnostic Approach to Instruction. Columbus, Ohio: C.E. Merrill Pub. Co, 1983.
Citace podle MLA (9th ed.)Ashlock, Robert B. Guiding Each Child's Learning of Mathematics: A Diagnostic Approach to Instruction. C.E. Merrill Pub. Co, 1983.
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