MLA

Mary, Serge, and Jean-Marc Cambien. Nieuwe Btw-aangiften 2003-2004. [s.l.]: Corporate Copyright, 2003.

APA

Mary, S., & Cambien, J. (2003). Nieuwe BTW-aangiften 2003-2004. [s.l.]: Corporate Copyright.

Chicago

Mary, Serge, and Jean-Marc Cambien. Nieuwe Btw-Aangiften 2003-2004. [s.l.]: Corporate Copyright, 2003.