Holmes, E. E. (1995). New directions in elementary school mathematics: Interactive teaching and learning. Merrill.
Cita Chicago (17th ed.)Holmes, Emma E. New Directions in Elementary School Mathematics: Interactive Teaching and Learning. Englewood Cliffs, N.J: Merrill, 1995.
Cita MLA (9th ed.)Holmes, Emma E. New Directions in Elementary School Mathematics: Interactive Teaching and Learning. Merrill, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.