Keiderling, G. (1970). Berlin 1945-1968. Dietz.
Cita Chicago (17th ed.)Keiderling, Gerhard. Berlin 1945-1968. Berlin: Dietz, 1970.
Cita MLA (8th ed.)Keiderling, Gerhard. Berlin 1945-1968. Dietz, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.