APA (7th ed.) Zitazioa
ebrary, Inc, Powell, J. L., & Wahidin, A. (2009). Risk and social welfare. Nova Science Publishers.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, Jason L. Powell, eta Azrini Wahidin. Risk and Social Welfare. New York: Nova Science Publishers, 2009.
MLA (9th ed.) Zitazioa
ebrary, Inc, et al. Risk and Social Welfare. Nova Science Publishers, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.