APA-viite (7. p.)
Spafford, G. (2009). Greening the data center: Opportunities for improving data center energy efficiency. IT Governance Pub..
Chicago-viite (17. p.)
Spafford, George. Greening the Data Center: Opportunities for Improving Data Center Energy Efficiency. Ely, U.K.: IT Governance Pub., 2009.
MLA-viite (9. p.)
Spafford, George. Greening the Data Center: Opportunities for Improving Data Center Energy Efficiency. IT Governance Pub., 2009.
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