Allen, W. R., & Gilmore, H. L. (1993). What managers do (4th ed.). American Management Association.
Chicago-viite (17. p.)Allen, William R., ja Harold L. Gilmore. What Managers Do. 4th ed. [Saranac Lake, N.Y.]: American Management Association, 1993.
MLA-viite (9. p.)Allen, William R., ja Harold L. Gilmore. What Managers Do. 4th ed. American Management Association, 1993.
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