Beck, R. C. (1986). Applying psychology: Understanding people (2nd ed.). Prentice-Hall.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBeck, Robert Clarence. Applying Psychology: Understanding People. 2nd ed. Englewood Cliffs, N.J: Prentice-Hall, 1986.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBeck, Robert Clarence. Applying Psychology: Understanding People. 2nd ed. Prentice-Hall, 1986.
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