Hickman, C. R. (1996). The fourth dimension: The next level of personnel and organizational achievement. John Wiley.
Citace podle Chicago (17th ed.)Hickman, Craig R. The Fourth Dimension: The Next Level of Personnel and Organizational Achievement. New York: John Wiley, 1996.
Citace podle MLA (9th ed.)Hickman, Craig R. The Fourth Dimension: The Next Level of Personnel and Organizational Achievement. John Wiley, 1996.
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