Cita APA (7a ed.)

Tyerman, C. (1998). The invention of the Crusades (1st pub.). Macmillan Press.

Cita Chicago Style (17a ed.)

Tyerman, Christopher. The Invention of the Crusades. 1st pub. Basingstoke [etc.]: Macmillan Press, 1998.

Cita MLA (9a ed.)

Tyerman, Christopher. The Invention of the Crusades. 1st pub. Macmillan Press, 1998.