Παραπομπή σε μορφή APA (7η εκδ.)

Valentine, C. W. (1972). The normal child and some of his abnormalitie: A general introduction to the psychology of childhood. Penguin Books.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Valentine, C. W. The Normal Child and Some of His Abnormalitie: A General Introduction to the Psychology of Childhood. Harmondsworth: Penguin Books, 1972.

Παραπομπή σε μορφή MLA (8th εκδ.)

Valentine, C. W. The Normal Child and Some of His Abnormalitie: A General Introduction to the Psychology of Childhood. Penguin Books, 1972.