Marks, J. L. (1985). Teaching elementary school mathematics for understanding (5th ed.). McGraw-Hill Book Co.
Citación estilo ChicagoMarks, John L. Teaching Elementary School Mathematics for Understanding. 5th ed. New York: McGraw-Hill Book Co, 1985.
Cita MLAMarks, John L. Teaching Elementary School Mathematics for Understanding. 5th ed. McGraw-Hill Book Co, 1985.
Warning: These citations may not always be 100% accurate.