(1999). Ecstasy, sanhi ng birth defects study. Kabayan.
Chicago Style (17th ed.) Zitazioa"Ecstasy, Sanhi Ng Birth Defects Study." Kabayan 1999.
MLA (9th ed.) Zitazioa"Ecstasy, Sanhi Ng Birth Defects Study." Kabayan, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.