TEACHING ELEMENTARY SCHOOL... & MARKS, J. L. (1975). Teaching elementary school mathematics for understanding.-- ed.4. McGraw-hill.
Cita Chicago Style (17a ed.)TEACHING ELEMENTARY SCHOOL... y John L. MARKS. Teaching Elementary School Mathematics for Understanding.-- Ed.4. New York: McGraw-hill, 1975.
Cita MLA (9a ed.)TEACHING ELEMENTARY SCHOOL... y John L. MARKS. Teaching Elementary School Mathematics for Understanding.-- Ed.4. McGraw-hill, 1975.
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