Παραπομπή σε μορφή APA (7η εκδ.)

Al-Attas, M. N. S. (1990). The intuition of existence: A fundamental basis of Islamic metaphysics. International Institute of Islamic Thought and Civilization, International Islamic University Malaysia.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Al-Attas, Muhammad Naguib Syed. The Intuition of Existence: A Fundamental Basis of Islamic Metaphysics. Kuala Lumpur: International Institute of Islamic Thought and Civilization, International Islamic University Malaysia, 1990.

Παραπομπή σε μορφή MLA (9th εκδ.)

Al-Attas, Muhammad Naguib Syed. The Intuition of Existence: A Fundamental Basis of Islamic Metaphysics. International Institute of Islamic Thought and Civilization, International Islamic University Malaysia, 1990.