APA (7th ed.) Citation

Vlietstra, D., & Vosters, C. (2015). Willy Boem. Clavis.

Chicago Style (17th ed.) Citation

Vlietstra, David, and Chris Vosters. Willy Boem. [Hasselt ; Amsterdam]: Clavis, 2015.

MLA (9th ed.) Citation

Vlietstra, David, and Chris Vosters. Willy Boem. Clavis, 2015.

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