APA (7th ed.) Citation

Wadsworth, B. J. (1984). Piaget's theory of cognitive and affective development (3rd ed.). Longman.

Chicago Style (17th ed.) Citation

Wadsworth, Barry J. Piaget's Theory of Cognitive and Affective Development. 3rd ed. New York: Longman, 1984.

MLA (9th ed.) Citation

Wadsworth, Barry J. Piaget's Theory of Cognitive and Affective Development. 3rd ed. Longman, 1984.