Cita APA (7a ed.)

El-Said, I., Parman, A., & Burckhardt, T. (1976). Geometric concepts in islamic art. World of Islam Festival Publishing Company.

Cita Chicago Style (17a ed.)

El-Said, Issam, Ayse Parman, y Titus Burckhardt. Geometric Concepts in Islamic Art. London: World of Islam Festival Publishing Company, 1976.

Cita MLA (9a ed.)

El-Said, Issam, et al. Geometric Concepts in Islamic Art. World of Islam Festival Publishing Company, 1976.