APA (7th ed.) Citation

Beaumont, P., Blake, G. H., & Wagstaff, J. M. (1976). The Middle East: A geographical study. John Wiley & Sons.

Chicago Style (17th ed.) Citation

Beaumont, Peter, Gerald Henry Blake, and J. M. Wagstaff. The Middle East: A Geographical Study. London, [etc.]: John Wiley & Sons, 1976.

MLA (9th ed.) Citation

Beaumont, Peter, et al. The Middle East: A Geographical Study. John Wiley & Sons, 1976.