Copeland, R. W. (1974). How children learn mathematics: Teaching implications of piaget's research (2nd ed.). Macmillan.
Citación estilo ChicagoCopeland, Richard W. How Children Learn Mathematics: Teaching Implications of Piaget's Research. 2nd ed. New York: Macmillan, 1974.
Cita MLACopeland, Richard W. How Children Learn Mathematics: Teaching Implications of Piaget's Research. 2nd ed. Macmillan, 1974.
Warning: These citations may not always be 100% accurate.