Geschichte der USA /
Hans R. Guggisberg.
APA Citation
Guggisberg, H. R. (Hans Rudolf). (1975). Geschichte der USA. Stuttgart: Kohlhammer.
MLA Citation
Guggisberg, Hans R. (Hans Rudolf), 1930-. Geschichte Der USA. Stuttgart: Kohlhammer, 1975.
Warning: These citations may not always be complete (especially for serials).