Thomson, R. (1959). The psychology of thinking. Baltimore: Penguin Books.
Chicago Style aipamenaThomson, Robert. The Psychology of Thinking. Baltimore: Penguin Books, 1959.
MLA aipamenaThomson, Robert. The Psychology of Thinking. Baltimore: Penguin Books, 1959.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.