Gaya APA

Copeland, R, W. (1979). How Children Learn Mathematics ; Teaching Implications Of Piaget's Research (Third Edition) . New York: Macmillan Publishing Company.

Gaya MLA

Copeland, Richard, W.. "How Children Learn Mathematics ; Teaching Implications Of Piaget's Research (Third Edition)". New York: Macmillan Publishing Company, 1979. Text.