APA (7th ed.) Citation

Harun Yahya. (2006). The sign leading to faith. Idara Isha'At-E-Diniyat.

Chicago Style (17th ed.) Citation

Harun Yahya. The Sign Leading to Faith. New Delhi: Idara Isha'At-E-Diniyat, 2006.

MLA (9th ed.) Citation

Harun Yahya. The Sign Leading to Faith. Idara Isha'At-E-Diniyat, 2006.