APA-čujuhus (7. p.)
Webb, A. (2003). Using earned value: A project manager's guide. Gower.
Chicago-čujuhus (17. p.)
Webb, Alan. Using Earned Value: A Project Manager's Guide. Aldershot, Hants, England ; Burlington, VT, USA: Gower, 2003.
MLA-čujuhus (9. p.)
Webb, Alan. Using Earned Value: A Project Manager's Guide. Gower, 2003.
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