ISBN: 0770901042 Publication & Distribution: Ottawa, Canada . Department of Political Science, Carleton University ;. Distributed by Carleton University Bookstore, (c)1981. Author: Rowat, Donald Cameron.
ISBN: 0708308732 (pbk.) :$c£2.95 Author: Thomas, M. Wynn. Publication & Distribution: [Cardiff] . University of Wales Press on behalf of the Welsh Arts Council, (c)1984. Author: Llwyd, Morgan$xCriticism and interpretation.
ISBN: 0718512243 :$c£15.00 Author: Hale, J. R. (John Rigby), 1923-1999. Publication & Distribution: Leicester [Leicestershire] . Leicester University Press, in association with Fontana Paperbacks, (c)1985.