Klerk, L. F. W. d. (1968). Probabilistic concept learning: A study of choice behavior with multinormally distributed stimuli. VAM.
Chicago-referens (17:e uppl.)Klerk, Lein Friedrich Wolfgang de. Probabilistic Concept Learning: A Study of Choice Behavior with Multinormally Distributed Stimuli. [Voorschoten: VAM, 1968.
MLA-referens (8:e uppl.)Klerk, Lein Friedrich Wolfgang de. Probabilistic Concept Learning: A Study of Choice Behavior with Multinormally Distributed Stimuli. VAM, 1968.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.