Helbing, L., Bock, C. V., & Kluncker, K. (1974). Stefan George: Dokumente seiner Wirkung. Castrum Peregrini Presse.
Chicago Style (17th ed.) CitationHelbing, Lothar, Claus Viktor Bock, and Karlhans Kluncker. Stefan George: Dokumente Seiner Wirkung. Amsterdam: Castrum Peregrini Presse, 1974.
MLA (8th ed.) CitationHelbing, Lothar, et al. Stefan George: Dokumente Seiner Wirkung. Castrum Peregrini Presse, 1974.
Warning: These citations may not always be 100% accurate.