Cita APA

Piaget, J. 1., & Piaget, J. 1. (1962). Play, dreams and imitation in childhood. New York, New York: Norton.

Citación estilo Chicago

Piaget, Jean 1896-1980, y Jean 1896-1980 Piaget. Play, Dreams and Imitation in Childhood. New York, New York: Norton, 1962.

Cita MLA

Piaget, Jean 1896-1980, y Jean 1896-1980 Piaget. Play, Dreams and Imitation in Childhood. New York, New York: Norton, 1962.