APA (7th ed.) Zitazioa
Leoni, P. (2010). Economic challenges in the fight against HIV/AIDS. Nova Science Publishers.
Chicago Style (17th ed.) Zitazioa
Leoni, Patrick. Economic Challenges in the Fight Against HIV/AIDS. New York: Nova Science Publishers, 2010.
MLA (9th ed.) Zitazioa
Leoni, Patrick. Economic Challenges in the Fight Against HIV/AIDS. Nova Science Publishers, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.