TEACHING ELEMENTARY SCHOOL... & MARKS, J. L. (1975). Teaching elementary school mathematics for understanding.-- ed.4. McGraw-hill.
Chicago-Zitierstil (17. Ausg.)TEACHING ELEMENTARY SCHOOL... und John L. MARKS. Teaching Elementary School Mathematics for Understanding.-- Ed.4. New York: McGraw-hill, 1975.
MLA-Zitierstil (9. Ausg.)TEACHING ELEMENTARY SCHOOL... und John L. MARKS. Teaching Elementary School Mathematics for Understanding.-- Ed.4. McGraw-hill, 1975.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.