Tony, G., & Mear, N. (2012). IT Service Management Foundation Practice Questions: For ITIL® Foundation Exam Candidates - Second edition. British Computer Society.
Παραπομπή Chicago StyleTony, Gannon, και Nigel Mear. IT Service Management Foundation Practice Questions: For ITIL® Foundation Exam Candidates - Second Edition. British Computer Society, 2012.
Παραπομπή MLATony, Gannon, και Nigel Mear. IT Service Management Foundation Practice Questions: For ITIL® Foundation Exam Candidates - Second Edition. British Computer Society, 2012.
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