APA (7th ed.) Citation

Ilyas, M., & Sardar, Z. (1988). Astronomy of Islamic times for the twenty-first century. Mansell.

Chicago Style (17th ed.) Citation

Ilyas, Mohammad, and Ziauddin Sardar. Astronomy of Islamic Times for the Twenty-first Century. London ; New York: Mansell, 1988.

MLA (9th ed.) Citation

Ilyas, Mohammad, and Ziauddin Sardar. Astronomy of Islamic Times for the Twenty-first Century. Mansell, 1988.