Sezgin, F., Amawi, M., Carl, E., & Neubauer, E. (1994). Texts and studies on the historical geography and topography of Northern and Eastern Europe. Frankfurt am Main : Institute for the History of Arabic-Islamic Science at the Johann Wolfgang Goethe University.
Παραπομπή σε μορφή Chicago (17η εκδ.)Sezgin, Fuat, Mazen Amawi, Ehrig-Eggert Carl, και Eckhard Neubauer. Texts and Studies on the Historical Geography and Topography of Northern and Eastern Europe. Frankfurt am Main : Institute for the History of Arabic-Islamic Science at the Johann Wolfgang Goethe University, 1994.
Παραπομπή σε μορφή MLA (9th εκδ.)Sezgin, Fuat, et al. Texts and Studies on the Historical Geography and Topography of Northern and Eastern Europe. Frankfurt am Main : Institute for the History of Arabic-Islamic Science at the Johann Wolfgang Goethe University, 1994.