Sammons, L. (2010). Math stretches: Building conceptual understanding. Shell Education.
Cita Chicago Style (17a ed.)Sammons, Laney. Math Stretches: Building Conceptual Understanding. Huntington Beach, Calif: Shell Education, 2010.
Cita MLA (9a ed.)Sammons, Laney. Math Stretches: Building Conceptual Understanding. Shell Education, 2010.
Precaución: Estas citas no son 100% exactas.