Não informado. (1972). Advances in educational psychology. University of London Press.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Advances in Educational Psychology. London: University of London Press, 1972.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Advances in Educational Psychology. University of London Press, 1972.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.