Copeland, R. W. (1979). How children learn mathematics: Teaching implications of Piaget's research (3rd ed.). Macmillan.
Citación estilo ChicagoCopeland, Richard W. How Children Learn Mathematics: Teaching Implications of Piaget's Research. 3rd ed. New York: Macmillan, 1979.
Cita MLACopeland, Richard W. How Children Learn Mathematics: Teaching Implications of Piaget's Research. 3rd ed. Macmillan, 1979.
Warning: These citations may not always be 100% accurate.