Hartlein, M. L. Construction and evaluation of a test to measure elementary mathematical understandings. Michigan University Microfilms.
Cita Chicago (17th ed.)Hartlein, Marion Louise. Construction and Evaluation of a Test to Measure Elementary Mathematical Understandings. Ann Arbor: Michigan University Microfilms.
Cita MLA (9th ed.)Hartlein, Marion Louise. Construction and Evaluation of a Test to Measure Elementary Mathematical Understandings. Michigan University Microfilms.
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