Romberg, O. R., Schwinghammer, G., & Mann, L. (1985). Twenty Years of Diplomatic Relations between the Federal Republic of Germany and Israel. Tribüne-Verl..

Romberg, Otto R., Georg Schwinghammer, and Linda Mann. Twenty Years of Diplomatic Relations Between the Federal Republic of Germany and Israel. Frankfurt am Main: Tribüne-Verl., 1985.

Romberg, Otto R., et al. Twenty Years of Diplomatic Relations Between the Federal Republic of Germany and Israel. Tribüne-Verl., 1985.