APA (7th ed.) Citation

Helmers, S. (2012). Microsoft Visio 2010 - Das offizielle Trainingsbuch (1st edition.). Microsoft Press Deutschland.

Chicago Style (17th ed.) Citation

Helmers, Scott. Microsoft Visio 2010 - Das Offizielle Trainingsbuch. 1st edition. Microsoft Press Deutschland, 2012.

MLA (9th ed.) Citation

Helmers, Scott. Microsoft Visio 2010 - Das Offizielle Trainingsbuch. 1st edition. Microsoft Press Deutschland, 2012.

Warning: These citations may not always be 100% accurate.