Al-Ghassali. (1983). The Alchemy of happiness. Ashraf.
Chicago Style (17th ed.) ZitazioaAl-Ghassali. The Alchemy of Happiness. Lahore: Ashraf, 1983.
MLA (9th ed.) ZitazioaAl-Ghassali. The Alchemy of Happiness. Ashraf, 1983.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.