APA (7th ed.) Citation

Olsen, E. (2014). Windows 8.1 - New Features (1st edition.). Infinite Skills.

Chicago Style (17th ed.) Citation

Olsen, Erin. Windows 8.1 - New Features. 1st edition. Infinite Skills, 2014.

MLA (9th ed.) Citation

Olsen, Erin. Windows 8.1 - New Features. 1st edition. Infinite Skills, 2014.

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