Hepner, H. W. (1979). Psychology applied to life and work (6th ed.). Prentice-Hall.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHepner, Harry Walker. Psychology Applied to Life and Work. 6th ed. Englewood Cliffs, N.J: Prentice-Hall, 1979.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHepner, Harry Walker. Psychology Applied to Life and Work. 6th ed. Prentice-Hall, 1979.
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