MLA

Lammers, Ko, and Antoinette Gladdines. Powerpoint 2007. 1e druk Brussel: Easy Computing, 2007.

APA

Lammers, K., & Gladdines, A. (2007). Powerpoint 2007. 1e druk Brussel: Easy Computing.

Chicago

Lammers, Ko, and Antoinette Gladdines. Powerpoint 2007. 1e druk Brussel: Easy Computing, 2007.