Cita APA

Piaget, J. (1959). Language and thought of the child (3rd ed.). Routledge.

Citación estilo Chicago

Piaget, Jean. Language and Thought of the Child. 3rd ed. London: Routledge, 1959.

Cita MLA

Piaget, Jean. Language and Thought of the Child. 3rd ed. Routledge, 1959.