Gaya APA

Reys, R, E., Montgomery, I, R, R, E, L, M. (2010). Helping children learn mathematics . Wiley, 2010: .

Gaya MLA

Reys, Robert, E.., Montgomery, I., Reys,, Robert, E.II, Lindquist,, Mary. "Helping children learn mathematics". Wiley, 2010: , 2010. .