(2003). Drogenprobleme in Europa. Informationsdienst Straffälligenhilfe, 11(4), 20-21.
Chicago Style (17th ed.) Citation"Drogenprobleme in Europa." Informationsdienst Straffälligenhilfe 11, no. 4 (2003): 20-21.
MLA (8th ed.) Citation"Drogenprobleme in Europa." Informationsdienst Straffälligenhilfe, vol. 11, no. 4, 2003, pp. 20-21.
Warning: These citations may not always be 100% accurate.