Zaitchik, J. A., & Wiehe, R. E. (1993). Human values: Perspectives on six themes. WCB.
Chicago-čujuhus (17. p.)Zaitchik, Joseph A., juo Roger E. Wiehe. Human Values: Perspectives on Six Themes. Wisconsin: WCB, 1993.
MLA-čujuhus (9. p.)Zaitchik, Joseph A., juo Roger E. Wiehe. Human Values: Perspectives on Six Themes. WCB, 1993.
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