APA (7th ed.) Citation

Runciman, S. (1990). The fall of Constantinople 1453. Cambridge Univ. Press.

Chicago Style (17th ed.) Citation

Runciman, Steven. The Fall of Constantinople 1453. Cambridge u.a: Cambridge Univ. Press, 1990.

MLA (9th ed.) Citation

Runciman, Steven. The Fall of Constantinople 1453. Cambridge Univ. Press, 1990.