By Sison, Alejo G.. Cheltenham, UK ; | Northampton, MA : Edward Elgar, 2008 . xii, 235 p ; 24 cm.. 9781845427467 (hbk.) | 1845427467 (hbk.)
By Edwards, Gareth. Cheltenham : Edward Elgar, 2015 . ix, 130 p. ; 23 cm.. 9781781009215