APA (7th ed.) Citation

Gibb, H. (1960). The Encyclopaedia of Islam: Vol. 1. E. J. Brill.

Chicago Style (17th ed.) Citation

Gibb, H.A.R. The Encyclopaedia of Islam: Vol. 1. Leiden, Netherlands: E. J. Brill, 1960.

MLA (9th ed.) Citation

Gibb, H.A.R. The Encyclopaedia of Islam: Vol. 1. E. J. Brill, 1960.