Berlin 1945-1975
MLA
Keiderling, Gerhard, and Percy Stulz.
Berlin 1945-1975. Moskva: Progress, 1976.
APA
Keiderling, G., & Stulz, P. (1976).
Berlin 1945-1975. Moskva: Progress.
Chicago
Keiderling, Gerhard., and Percy Stulz.
Berlin 1945-1975. Moskva :: Progress,, 1976.