Não informado. (1953). Nebraska Symposium on Motivation. University of Nebraska, Department of Psychology.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Nebraska Symposium on Motivation. Lincoln, Neb: University of Nebraska, Department of Psychology, 1953.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Nebraska Symposium on Motivation. University of Nebraska, Department of Psychology, 1953.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.