APA (7th ed.) Zitazioa
ebrary, Inc, & Upshaw, K. E. (2010). Strengthening the retirement system beyond social security. Nova Science Publishers.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, eta Kala E. Upshaw. Strengthening the Retirement System Beyond Social Security. New York: Nova Science Publishers, 2010.
MLA (9th ed.) Zitazioa
ebrary, Inc, eta Kala E. Upshaw. Strengthening the Retirement System Beyond Social Security. Nova Science Publishers, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.