APA (7th ed.) Citation

Phillips, J. L. (1975). The origins of intellect: Piaget's theory (2d ed.). W. H. Freeman.

Chicago Style (17th ed.) Citation

Phillips, John L. The Origins of Intellect: Piaget's Theory. 2d ed. San Francisco: W. H. Freeman, 1975.

MLA (9th ed.) Citation

Phillips, John L. The Origins of Intellect: Piaget's Theory. 2d ed. W. H. Freeman, 1975.