APA (7th ed.) Citation

Runciman, S. (1992). The First crusade. Cambridge Univ. Press.

Chicago Style (17th ed.) Citation

Runciman, Steven. The First Crusade. Cambridge Univ. Press, 1992.

MLA (9th ed.) Citation

Runciman, Steven. The First Crusade. Cambridge Univ. Press, 1992.

Warning: These citations may not always be 100% accurate.