O'Neill, M. (2010). Green IT for sustainable business practice: An ISEB Foundation guide. British Informatics Society Limited.
Chicago-viite (17. p.)O'Neill, Mark. Green IT for Sustainable Business Practice: An ISEB Foundation Guide. Swindon: British Informatics Society Limited, 2010.
MLA-viite (9. p.)O'Neill, Mark. Green IT for Sustainable Business Practice: An ISEB Foundation Guide. British Informatics Society Limited, 2010.
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