Trenkel, E. (1999). Stichwort: Bruno Gröning Freundeskreis. Berliner Dialog, 5(2), 7-8.
Chicago Style (17th ed.) CitationTrenkel, Eduard. "Stichwort: Bruno Gröning Freundeskreis." Berliner Dialog 5, no. 2 (1999): 7-8.
MLA (8th ed.) CitationTrenkel, Eduard. "Stichwort: Bruno Gröning Freundeskreis." Berliner Dialog, vol. 5, no. 2, 1999, pp. 7-8.
Warning: These citations may not always be 100% accurate.