International Conference of Geoscientific Research in Northeast Africa & Thorweihe, U. (1993). Geoscientific research in Northeast Africa: Proceedings of the international conference, Berlin, Germany, 17-19 June 1993. Balkema.
Chicago-Zitierstil (17. Ausg.)International Conference of Geoscientific Research in Northeast Africa und Ulf Thorweihe. Geoscientific Research in Northeast Africa: Proceedings of the International Conference, Berlin, Germany, 17-19 June 1993. Rotterdam [u.a.]: Balkema, 1993.
MLA-Zitierstil (9. Ausg.)International Conference of Geoscientific Research in Northeast Africa und Ulf Thorweihe. Geoscientific Research in Northeast Africa: Proceedings of the International Conference, Berlin, Germany, 17-19 June 1993. Balkema, 1993.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.