Gaya APA

Grossnickle, F, E., Brueckner, L, J. (1959). Discovering meanings in arithmetic . New York: Holt, Rinehart and Winston.

Gaya MLA

Grossnickle, Foster, E.., Brueckner, Leo, J.. "Discovering meanings in arithmetic". New York: Holt, Rinehart and Winston, 1959. Text.