Northrup, T., Mackin, J. C., & Johannis, D. (2010). Windows 7: Support in Unternehmen ; Original Microsoft Training für Examen 70-685. O'Reilly.
Citazione stile Chigago Style (17a edizione)Northrup, Tony, J. C. Mackin, e Detlef Johannis. Windows 7: Support in Unternehmen ; Original Microsoft Training Für Examen 70-685. Köln: O'Reilly, 2010.
Citatione MLA (8a ed.)Northrup, Tony, et al. Windows 7: Support in Unternehmen ; Original Microsoft Training Für Examen 70-685. O'Reilly, 2010.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.