On the Margins of Crusading. The Military Orders, the Papacy and the Christian World, ed. Helen J. Nicholson (Crusades – Subsidia, 4). Farnham and Burlington, VT: Ashgate, 2011. Pp. xiii, 209. ISBN 978 1 4094 3217 3 (hardback), 978 1 4094 3218 0 (e-book).

"On the Margins of Crusading. The Military Orders, the Papacy and the Christian World, ed. Helen J. Nicholson (Crusades – Subsidia, 4). Farnham and Burlington, VT: Ashgate, 2011. Pp. xiii, 209. ISBN 978 1 4094 3217 3 (hardback), 978 1 4094 3218 0 (e-book).." Crusades, 11(1), p. 281