Gaya APA
Riley-Smith, L., Riley-Smith, J. (1981).
Crusades, The : Idea and Reality 1095 - 1274 .
United Kingdom:
Edward Arnold.
Gaya MLA
Riley-Smith, Louise., Riley-Smith, Jonathan.
"Crusades, The : Idea and Reality 1095 - 1274".
United Kingdom:
Edward Arnold,
1981.
Academic.