Style de citation APA (7e éd.)

Riley-Smith, J. S. C. (2010). What were the Crusades? (4. ed., [repr.].). Palgrave Macmillan.

Style de citation Chicago (17e éd.)

Riley-Smith, Jonathan Simon Christopher. What Were the Crusades? 4. ed., [repr.]. Basingstoke [u.a.]: Palgrave Macmillan, 2010.

Style de citation MLA (8e éd.)

Riley-Smith, Jonathan Simon Christopher. What Were the Crusades? 4. ed., [repr.]. Palgrave Macmillan, 2010.