APA (7th ed.) Citation

Gibb, H. A. R. (1979). The encyclopaedia of Islam (New ed. / prepared by a number of leading orientalists.). E.J. Brill.

Chicago Style (17th ed.) Citation

Gibb, Hamilton Alexander Rosskeen. The Encyclopaedia of Islam. New ed. / prepared by a number of leading orientalists. Leiden: E.J. Brill, 1979.

MLA (9th ed.) Citation

Gibb, Hamilton Alexander Rosskeen. The Encyclopaedia of Islam. New ed. / prepared by a number of leading orientalists. E.J. Brill, 1979.