APA (7th ed.) Zitazioa
Asagha, R. B. (2009). Logotherapy: Issues from an African perspective. University Press Plc.
Chicago Style (17th ed.) Zitazioa
Asagha, Rachel B. Logotherapy: Issues from an African Perspective. Ibada: University Press Plc, 2009.
MLA (9th ed.) Zitazioa
Asagha, Rachel B. Logotherapy: Issues from an African Perspective. University Press Plc, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.