Darguns, J. G., Cofer, C. N., & Hermanson, R. H. (1975). Programmed learning aid for assessment of personality. Learning Systems Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDarguns, Juris G., Charles N. Cofer, और Roger H. Hermanson. Programmed Learning Aid for Assessment of Personality. Homewood, Illinois: Learning Systems Company, 1975.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDarguns, Juris G., et al. Programmed Learning Aid for Assessment of Personality. Learning Systems Company, 1975.
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