Citazione Stile APA (7a Edizione)

Piaget, J., & Gabain, M. (1977). The moral judgement of the child. Penguin Books.

Citazione stile Chigago Style (17a edizione)

Piaget, Jean, e Marjorie Gabain. The Moral Judgement of the Child. London: Penguin Books, 1977.

Citatione MLA (9a ed.)

Piaget, Jean, e Marjorie Gabain. The Moral Judgement of the Child. Penguin Books, 1977.