Romain, L., Gellner, W., & Euler-Schmidt, M. (1990). Gerd Winner: City Light Motion ; urbane Strukturen ; U-Bahn Piusstrasse Köln Ehrenfeld 1989. Quensen.
Chicagoスタイル(17版)引用形式Romain, Lothar, Winfried Gellner, , Michael Euler-Schmidt. Gerd Winner: City Light Motion ; Urbane Strukturen ; U-Bahn Piusstrasse Köln Ehrenfeld 1989. Lamspringe: Quensen, 1990.
MLA(8版)引用形式Romain, Lothar, et al. Gerd Winner: City Light Motion ; Urbane Strukturen ; U-Bahn Piusstrasse Köln Ehrenfeld 1989. Quensen, 1990.
警告: この引用は必ずしも正確ではありません.