MLA

Companje, Karel-Peter, et al. Two Centuries of Solidarity : German, Belgian and Dutch Social Health Insurance 1770-2008. Amsterdam: Aksant, 2009.

APA

Companje, K., Hendriks, R., Veraghtert, K., & Widdershoven, B. (2009). Two centuries of solidarity : German, Belgian and Dutch social health insurance 1770-2008. Amsterdam: Aksant.

Chicago

Companje, Karel-Peter, R.H.M Hendriks, Karel Veraghtert, and Brigitte Widdershoven. Two Centuries of Solidarity: German, Belgian and Dutch Social Health Insurance 1770-2008. Amsterdam: Aksant, 2009.