Cadwell, C. M. (2006). First-line supervision (5th ed.). American Management Association.
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Chicago-čujuhus (17. p.)
Cadwell, Charles M. First-line Supervision. 5th ed. [Saranac Lake, N.Y.]: American Management Association, 2006.
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MLA-čujuhus (9. p.)
Cadwell, Charles M. First-line Supervision. 5th ed. American Management Association, 2006.
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