By Kelly, Kate, Zeman, Anne
By Chrisp, Peter
By Books, Hinkler
By Kumon
By Bentley, Diana
By Peter Patilla, Patilla, Peter
By Howe, Linda
By Baird Rattini, Kristin, National Geographic Kids
By Maloof, Torrey
By Odam, Professor George, etc.
By Ardrey, Julie
By Eureka! Eleven Plus Exams
By Wright, Claire
By Inglis, Jane, Neate, Roberta, Palmer, Sue
By Beatty, Carole, Neate, Roberta, Palmer, Sue
By Stanfield, Jeff
By Mackay, Frances, Jennings, Terry
By Rushford, Ariadne
By Margaret Barratt
By Tony Buzan, Buzan, Tony
By Rosen, Michael, Collins Big Cat
By Jennings, Terry, Haycock, Fred
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 Binch, Norman
By Hewitt, Sally