APA (7th ed.) Citation

Ahmed, A. S. The challenge of Islam in the 21st century.

Chicago Style (17th ed.) Citation

Ahmed, Akbar S. The Challenge of Islam in the 21st Century. IIIT & AMSS.

MLA (9th ed.) Citation

Ahmed, Akbar S. The Challenge of Islam in the 21st Century.

Warning: These citations may not always be 100% accurate.