By Caves, Richard E.
By School Mathematics Project
By Gillham, Bill
By Gillham, Bill, Bill Gillham
By Gillham, W. E. C., Glasberg, Jean, Snow, Alan
By Bill Graham, Gillham, Bill
By Olver, Peter J.
By Parrott, Martin, Martin Parrott
By Hooper, Meredith
By Partridge, Juliet
By Williams, Marcia
By Partridge, Juliet, Gamble, Kim
By Partridge, Juliet, Juliet Partridge
By Cohen, G. A.
By Marshall
By Westfall, Richard
By Secada, Walter G., Fennema, Elizabeth, Adajian, Lisa Byrd
By Usher, Frances, Ball, Gerry
By Bond, Ruskin
By Hallworth, Grace, Ayliffe, Alex, Grace Hallworth