GIBB, H., & KRAMERS, J. (1995). Shorter encyclopaedia of Islam/ Edit. Behalf of the Royal Netherlands Academy.-- Impression 4. E.J. Brill.
Chicago Style aipamenaGIBB, H.A.R, and J.H KRAMERS. Shorter Encyclopaedia of Islam/ Edit. Behalf of the Royal Netherlands Academy.-- Impression 4. Leiden: E.J. Brill, 1995.
MLA aipamenaGIBB, H.A.R, and J.H KRAMERS. Shorter Encyclopaedia of Islam/ Edit. Behalf of the Royal Netherlands Academy.-- Impression 4. E.J. Brill, 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.