By Chris Oxlade
By Angela Royston
By Knapp, Brian
By Nankivell-Aston, S
By Oxlade, Chris
By Stringer, John
By Whyman, Kathryn
By Treays, Rebecca
By Mitchell, Sandra, Sherry, Mr Chris, McDuell, Mr Bob
By The Open University
By Science Club
By Riley, Peter
By Advanced Physics Project for Independent Learning
By Steve Parker
By Ann Fullick
By Solway, Andrew
By Williams, David J.
By Millar, Robin
By Akrill, T.B., Millar, C.J.
By Nuffield Physics
By Lewis, John L., Foxcroft, G.E.
By David Glover, Glover, David
By Hammond, Richard
By M.A. Edward L. Hanson, Edward L. Hanson, M.A.
By Cooke, Andy, Martin, Jean
By Susan Baker
By Patilla, Peter, Park, Julie
By Hartley, WILLIAM