By Beckett, B.S., Goodwin, Chris, B.S. Beckett, Chris Goodwin
By Pople, Stephen, Beckett, Brian, Gallager, Rosemarie, Ingram, Paul
By Gallagher, R., Beckett, B.S., R. Gallagher, B.S. Beckett
By O'Sullivan, Joan, Merrick, WILLIAM
By Gallagher, R., Beckett, B.S.
By Pickering, W. R.
By Bethell, George, Coppock, David
By Pickering, Ron
By Johnstone, Adam, Adam Johnstone
By Gannon, Paddy
By Beckett, Brian, Gallagher, Rose Marie
By Beckett, Brian, Gallagher, Rosemarie
By Coppock, David
By Philippa Hulme
By Jagger, Sarah
By University of York Science Education Group, Nuffield Curriculum Centre