Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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