APA (7th ed.) Citation

Rogers, M., & Rogers, J. M. (1976). The spread of Islam. Elsevier-Phaidon.

Chicago Style (17th ed.) Citation

Rogers, Michael, and J. M. Rogers. The Spread of Islam. Oxford: Elsevier-Phaidon, 1976.

MLA (8th ed.) Citation

Rogers, Michael, and J. M. Rogers. The Spread of Islam. Elsevier-Phaidon, 1976.