Crum, C. (2003). Demand management best practices: Process, principle and collaboration. J. Ross Publishing.
Lua i Stíl Chicago (17ú heag.)Crum, Colleen. Demand Management Best Practices: Process, Principle and Collaboration. J. Ross Publishing, 2003.
Lua MLA (8ú heag.)Crum, Colleen. Demand Management Best Practices: Process, Principle and Collaboration. J. Ross Publishing, 2003.
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