By McGuire, Peter, Smith, Ken
By Coad, Mal, Whiffen, Glenn, Maenpaa, Marjut, Humphries, Mark, Foley, James, Haese, Michael
By Tipler, Maryanne, Douglas, Jocelyn
By Kirkman, John, Turk, Christopher
By Webber, Beryl, Haigh, Jean
By TickTock Books
By Hanson, David E
By Andrew Baines
By Brighouse, Alan, etc., Godber, Patilla
By Brodie, Andrew
By Scottish Primary Mathematics Group
By Bowles, David, Jefferson, Brian, Mullan, Eddie, Rayneau, John, Wagner, Robert, Williams, Paul, Wiseman, Garry, Wood, Katie, Heylings, Mike, Baker
By Hewavisenki, Lakshmi
By Parsons, Richard, Richard Parsons
By Princeton Review
By Patilla, Peter, Mckenna, Terry
By Tipler, M. J.
By Tipler, M J
By Cotton, Tony