By Jenkins, E.W.
By Liptrot, G.F.
By Hills, Phil
By Alec Thompson, Ann Lainchbury, John Stephens
By Chemistry Project Team, ILEA
By Winston, Robert
By Bassam Z. Shakhashiri
By Brown, Tony
By Bluemel, Martin
By McDuell, Bob
By M. Berry, C. Osborne, A. Peppin
By Pluckrose, Henry
By Lawrie Ryan, Ryan, Lawrie, Snape, George, Rowlands, David
By Parker, Steve
By John Townsend
By Nuffield-Chelsea Curriculum
By Nigel Saunders
By Neuss, Geoffrey
By Fergusson, Jacqueline, Hart, Richard
By Wertheim, Jan, etc.
By Saunders, Nigel, Gardom Hulme, Philippa