By Hemington, Judith, Howells, Glenys
By Howells, Jeremy, Michie, Jonathan
By Lewis, Siân, Howells, Graham
By Randall, Ronne, Howells, Graham
By Howells, Coral Ann
By Lambert, Rae, Howells, Graham
By Grogono, Alan W., Howells, T. H.
By Berryman, Julia C., Ockleford, Elizabeth M., Howells, Kevin, Hargreaves, David J., Wildbur, Diane J.
By Howells, R.J.
By Howells, Peter, Bain, Keith
By Brownsword, Professor Roger, etc., Howells, Geraint, Wilhelmsson, Thomas
By O'Connell Phd LP, Dr. Katie, Regan, Lisa, Howells, Mel
By Denchfield, Nick, Howells, Graham
By de le Bédoyère, Camilla, Howells, Mel
By Henshaw, Ray, Howells, Bernadette
By Howells
By Howells, Christina
By Howells, Ron
By Bain, Howells
By Howells, Prof Coral Ann
By Tynte, Anne, Howells, Marion
By Howells, Marion, .
By Waddell, Martin, Howells, Graham