APA استشهاد

Moustafa, A., & Sperl, S. (2014). The cosmic script: Sacred geometry and the science of Arabic penmanship. Rochester, Vermont: Inner Traditions.

استشهاد بنمط شيكاغو

Moustafa, Ahmed, و Stefan Sperl. The Cosmic Script: Sacred Geometry and the Science of Arabic Penmanship. Rochester, Vermont: Inner Traditions, 2014.

MLA استشهاد

Moustafa, Ahmed, و Stefan Sperl. The Cosmic Script: Sacred Geometry and the Science of Arabic Penmanship. Rochester, Vermont: Inner Traditions, 2014.