Helander, M. (2006). A guide to human factors and ergonomics (Second edition.). CRC Press/Taylor & Francis Group.
Chicago-viite (17. p.)Helander, Martin. A Guide to Human Factors and Ergonomics. Second edition. Boca Raton, FL: CRC Press/Taylor & Francis Group, 2006.
MLA-viite (8. p.)Helander, Martin. A Guide to Human Factors and Ergonomics. Second edition. CRC Press/Taylor & Francis Group, 2006.
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