APA (7e ed.) Bronvermelding

(1988). Who's who in Germany: A - N ; O - Z, Appendix. Sutter.

Chicago (17e ed.) Bronvermelding

Who's Who in Germany: A - N ; O - Z, Appendix. Essen: Sutter, 1988.

MLA (8e ed.) Bronvermelding

Who's Who in Germany: A - N ; O - Z, Appendix. Sutter, 1988.