Groeg, O. J. (1976). Who's who in Germany: A bibliographical dictionary containing some ... biographies of prominent people in and of Germany and 2400 organizations (6. ed.). Who's Who Books.
Chicago-Zitierstil (17. Ausg.)Groeg, Otto J. Who's Who in Germany: A Bibliographical Dictionary Containing Some ... Biographies of Prominent People in and of Germany and 2400 Organizations. 6. ed. Ottobrunn: Who's Who Books, 1976.
MLA-Zitierstil (9. Ausg.)Groeg, Otto J. Who's Who in Germany: A Bibliographical Dictionary Containing Some ... Biographies of Prominent People in and of Germany and 2400 Organizations. 6. ed. Who's Who Books, 1976.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.