APA (7 ম সংস্করণ) উদ্ধৃতি

Wadsworth, B. J. (2004). Piaget's theory of cognitive and affective development (5a. ed.). Pearson Education Inc.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Wadsworth, Barry J. Piaget's Theory of Cognitive and Affective Development. 5a. ed. Boston: Pearson Education Inc, 2004.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Wadsworth, Barry J. Piaget's Theory of Cognitive and Affective Development. 5a. ed. Pearson Education Inc, 2004.