By Open University
By Rutterford, J, et al
By Smart, L., Johnson, D.
By Hilary MacQueen
By Saffrey, Jill
By Michael Gillman, Michael Gillman
By Ridge, Irene, Pond, Caroline M.
By Open University Course Team
By Emsley, Professor Clive
By Watson, N. J.
By Wilkinson, R.
By D. Johnson, M. Scott
By Walsh, L., Wilkinson, R.
By WOLFE, J.
By Lentin, A.
By Walsh, L., Lentin, A.
By Tomlinson, N., Warburton, N.
By Unknown
By The Open University
By Anon
By Unnamed
By MS221 Course Team
By MST121 Course Team