By David Flint, B. Marsdon, V. Marsden, Flint, David, Marsdon, B., Marsden, V.
By Professor W. E. Marsden, etc., V.M. Marsden, David Flint, Marsden, Professor W. E., V.M., Flint, David
By John Foster
By Scholastic
By Marit Claridge
By Prof. Alistair Ross
By Royston Lambert, etc.
By Aidan Warlow, Warlow, A.
By Aidan Warlow
By Anon
By Terry Jennings, Jennings, Terry, Haycock, Fred
By Dee Reid, Diana Bentley, Norma Gaunt, Jane Whitwell, Reid, Dee, Bentley, Diana, Gaunt, Norma, Whitwell, Jane
By Gwynneth M. Ashby
By Barry Scholes, Gill Atha
By Kjartan Poskitt, Philip Reeve
By Brenda Whittle, Heidi Jayne
By Miskin, Ruth
By Margaret Barratt
By Claire Llewellyn
By SPMG, Scottish Primary Maths Group
By Scottish Primary Mathematics Group