APA (7th ed.) Citation

Piaget, J., & Warden, M. (1928). Judgment and reasoning in the child. Routledge & Paul.

Chicago Style (17th ed.) Citation

Piaget, Jean, and Marjorie Warden. Judgment and Reasoning in the Child. London: Routledge & Paul, 1928.

MLA (9th ed.) Citation

Piaget, Jean, and Marjorie Warden. Judgment and Reasoning in the Child. Routledge & Paul, 1928.