APA (7th ed.) Zitazioa
ebrary, Inc, Griffiths, M. O., & Richards, D. A. (2011). Drug trade, trafficking and policies. Nova Science Publishers.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, Megan O. Griffiths, eta Dylan A. Richards. Drug Trade, Trafficking and Policies. New York: Nova Science Publishers, 2011.
MLA (9th ed.) Zitazioa
ebrary, Inc, et al. Drug Trade, Trafficking and Policies. Nova Science Publishers, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.