Source:
Journal of experimental psychology [J Exp Psychol] 1963 Jul; Vol. 66, pp. 17-22.Publisher: American Psychological Association Country of Publication: United States NLM ID: 7502586 Publication Model: Print
Source:
Psychological review [Psychol Rev] 1964 Sep; Vol. 71, pp. 352-79.Publisher: American Psychological Association Country of Publication: United States NLM ID: 0376476 Publication Model: Print