Παραπομπή σε μορφή APA (7η εκδ.)

Freye, E., & Levy, J. V. (2008). Opioids in Medicine: A Comprehensive Review on the Mode of Action and the Use of Analgesics in Different Clinical Pain States. Springer Netherlands.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Freye, Enno, και Joseph Victor Levy. Opioids in Medicine: A Comprehensive Review on the Mode of Action and the Use of Analgesics in Different Clinical Pain States. Dordrecht: Springer Netherlands, 2008.

Παραπομπή σε μορφή MLA (8th εκδ.)

Freye, Enno, και Joseph Victor Levy. Opioids in Medicine: A Comprehensive Review on the Mode of Action and the Use of Analgesics in Different Clinical Pain States. Springer Netherlands, 2008.