Παραπομπή σε μορφή APA (7η εκδ.)

Wadsworth, B. J. (1996). Piaget's theory of cognitive and affective development: Foundations of constructivism (5th ed.). Longman.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Wadsworth, Barry J. Piaget's Theory of Cognitive and Affective Development: Foundations of Constructivism. 5th ed. New York: Longman, 1996.

Παραπομπή σε μορφή MLA (9th εκδ.)

Wadsworth, Barry J. Piaget's Theory of Cognitive and Affective Development: Foundations of Constructivism. 5th ed. Longman, 1996.