APA (7th ed.) Citation

Ilyas. (1988). Astronomy of Islamic times for the twenty-first century. Mansell.

Chicago Style (17th ed.) Citation

Ilyas. Astronomy of Islamic Times for the Twenty-first Century. London: Mansell, 1988.

MLA (8th ed.) Citation

Ilyas. Astronomy of Islamic Times for the Twenty-first Century. Mansell, 1988.