APA način citiranja

Eddy, N. B., Friebel, H., Hahn, K., & Halbach, H. (1969). Codeine and its alternates for pain and cough relief: 4. Potential alternates for cough relief.

Čikaški stil citiranja

Eddy, Nathan B., Hans Friebel, Klaus-Jürgen Hahn, i Hans Halbach. Codeine and Its Alternates for Pain and Cough Relief: 4. Potential Alternates for Cough Relief. 1969.

MLA način citiranja

Eddy, Nathan B., Hans Friebel, Klaus-Jürgen Hahn, i Hans Halbach. Codeine and Its Alternates for Pain and Cough Relief: 4. Potential Alternates for Cough Relief. 1969.