Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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