Dusek, D. E., & Girdano, D. A. (1987). Drugs: A factual account (Ed.4.).
Chicago Style aipamenaDusek, Dorothy E., and Daniel A. Girdano. Drugs: A Factual Account. Ed.4. New Delhi, Asian Books, 1987.
MLA aipamenaDusek, Dorothy E., and Daniel A. Girdano. Drugs: A Factual Account. Ed.4. 1987.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.