APA Edition Citation

Wadsworth, B. J. Piaget's theory of cognitive and affective development (Ed.4.).

Chicago Edition Citation

Wadsworth, Barry J. Piaget's Theory of Cognitive and Affective Development. Ed.4. London, Longman.

MLA Edition Citation

Wadsworth, Barry J. Piaget's Theory of Cognitive and Affective Development. Ed.4.

Warning: These citations may not always be 100% accurate.