Dyfyniad APA

Allen, W. R., & Gilmore, H. L. (1993). What managers do (4th ed.). American Management Association.

Dyfyniad Arddull Chicago

Allen, William R., and Harold L. Gilmore. What Managers Do. 4th ed. [Saranac Lake, N.Y.]: American Management Association, 1993.

Dyfyniad MLA

Allen, William R., and Harold L. Gilmore. What Managers Do. 4th ed. American Management Association, 1993.

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