ZISCHANG, H. (1980). Surfaces and planar discontinuous groups: Tr. from the german by J.Stillwell. Springer-Verlag.
Chicago Style (17th ed.) ZitazioaZISCHANG, Heiner. Surfaces and Planar Discontinuous Groups: Tr. from the German by J.Stillwell. Berlin: Springer-Verlag, 1980.
MLA (9th ed.) ZitazioaZISCHANG, Heiner. Surfaces and Planar Discontinuous Groups: Tr. from the German by J.Stillwell. Springer-Verlag, 1980.
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