Rieger, V., Späth, K., & Ulmer, G. (1975). The urban Dilemma: A programmed course on life in the city, based on authentic texts. Diesterweg.
Chicago Style (17th ed.) CitationRieger, Volker, Klaus Späth, and Gerd Ulmer. The Urban Dilemma: A Programmed Course on Life in the City, Based on Authentic Texts. Frankfurt a. M. ; Berlin [u.a.]: Diesterweg, 1975.
MLA (9th ed.) CitationRieger, Volker, et al. The Urban Dilemma: A Programmed Course on Life in the City, Based on Authentic Texts. Diesterweg, 1975.
Warning: These citations may not always be 100% accurate.