Tophoven, R. (1985). GSG [neun] 9 German response to terrorism (2nd ed.). Bernard & Graefe.
Chicago-Zitierstil (17. Ausg.)Tophoven, Rolf. GSG [neun] 9 German Response to Terrorism. 2nd ed. Koblenz: Bernard & Graefe, 1985.
MLA-Zitierstil (8. Ausg.)Tophoven, Rolf. GSG [neun] 9 German Response to Terrorism. 2nd ed. Bernard & Graefe, 1985.
警告：這些引文格式不一定是100％准確.