APA (7th ed.) Citation

Cachia, P., Welch, A. T., & Watt, W. M. W. M. (1978). Islam, past influence and present challenge. Edinburgh University Press.

Chicago Style (17th ed.) Citation

Cachia, Pierre, Alford T. Welch, and W. Montgomery William Montgomery Watt. Islam, Past Influence and Present Challenge. Edinburgh: Edinburgh University Press, 1978.

MLA (9th ed.) Citation

Cachia, Pierre, et al. Islam, Past Influence and Present Challenge. Edinburgh University Press, 1978.