By Stella Blackstone, Caroline Mockford
By Baruzzi, Agnese
By Eric Hill, Hill, Eric
By GNEDENKO
By Bonaventura, Luca, Redler, Rene, Budich, Reinhard
By Norman Lock, Lock, Norman
By Vorderman, Carol
By Collins Easy Learning
By Campbell, Rod
By Marsland, Stephen
By Braaksma, Boele, Broer, Hendrik, Takens, Floris
By Marcus Du Sautoy, du Sautoy, Marcus
By Jakow Trachtenberg, Trachtenberg, Jakow, Cutler, Ann, Mcshane, Rudolph
By Connor, Steven
By Clarke, Peter, Collins Easy Learning
By Scarry, Richard, No Author.
By Andrew Brodie
By Diyan Leake
By Lloyd, Sam
By Harrison, Paul
By Read, Lorna, Worrall, Linda
By Blyton, Enid, Chorion CGI
By Sharratt, Nick
By Atkinson, Sue
By Read, Lorna, Tulip, Jenny
By Moira Wilson
By Zegarelli, Mark