Cita APA (7th ed.)

Piaget, J. (1955). The language and thought of the child. The World Publishing Co.

Cita Chicago (17th ed.)

Piaget, Jean. The Language and Thought of the Child. Cleveland: The World Publishing Co, 1955.

Cita MLA (9th ed.)

Piaget, Jean. The Language and Thought of the Child. The World Publishing Co, 1955.