By Wendy Wren
By David Clemson
By Sarah Lindsay
By Andrew Baines
By Frances Down
By Flanagan, Cara, Cardwell, Mike
By Flanagan, Cara, Russell, Julia
By Lawrence Briggs, Elaine Armstrong, Steve Harrison
By Julia Burton, Elspeth Stevenson
By James Bailey, Simon Green, Nick Lund, Julia Willerton, Jane Willson, Simon Green, Bailey, James, Green, Simon, Willerton, Julia, Willson, Jane, Lund, Nick
By Daniel Clayton, Beth Kemp, Clayton, Kemp, Leyburn
By Mark Saunders, Adam Leyburn
By David Austen, Peter Hailstone
By Quentin Bell
By M. Wilson, etc.
By D. Boulton, etc.
By Simon Eliot, K. Whitlock, Eliot, Simon, Whitlock, K.
By Simon Eliot, Keith Whitlock, Eliot, Simon, Whitlock, Keith
By M. Bartholomew, etc., Bartholomew, M.
By C. Cunningham, Gillian Perry, Cunningham, C., Perry, Gillian
By The Open University
By Open University Course Team
By Andy Northedge, Jeff Thomas, Andrew Lane, Alice Peasgood
By Cooper, Troy, Roth, Ilona