Koller, G. (1995). Was Prävention ist. Kind, Jugend, Gesellschaft, 40(4), 135-137.
Chicago Style (17th ed.) CitationKoller, Gerald. "Was Prävention Ist." Kind, Jugend, Gesellschaft 40, no. 4 (1995): 135-137.
MLA (8th ed.) CitationKoller, Gerald. "Was Prävention Ist." Kind, Jugend, Gesellschaft, vol. 40, no. 4, 1995, pp. 135-137.
Warning: These citations may not always be 100% accurate.