APA (7th ed.) Citation

Nicol, C., Nicol, N., & Jarai, H. (2004). Windows, Word & Excel. Franzis.

Chicago Style (17th ed.) Citation

Nicol, Cornelia, Natascha Nicol, and Helga Jarai. Windows, Word & Excel. Poing: Franzis, 2004.

MLA (9th ed.) Citation

Nicol, Cornelia, et al. Windows, Word & Excel. Franzis, 2004.