APA (7th ed.) Citation

Koenig, A. (1980). Drogen. RL, 9(4), 23-30.

Chicago Style (17th ed.) Citation

Koenig, Anne-Marie. "Drogen." RL 9, no. 4 (1980): 23-30.

MLA (8th ed.) Citation

Koenig, Anne-Marie. "Drogen." RL, vol. 9, no. 4, 1980, pp. 23-30.

Warning: These citations may not always be 100% accurate.