By Edwards, Mary, Fletcher, Lis
By Saunders, J.G.
By J.G. Saunders, Peter Gosh
By J.G. Saunders
By Boyde, Florence Colonna, etc.
By Holt, P.J.
By Julian Wolchover, D.N. Jackson
By Ball, Derek, Ball, Barbara
By Ball, Barbara, Ball, Derek
By Miller, Jim, etc., Newman, Graham, Proctor, Maralyn
By Miller, Jim
By Yarwood, A.
By Taylor, D.C., Atkinson, I.S.
By Simmons, David, Nunn, Peter
By Court, R.A., Court, A.M.
By Mathematics in Action Group
By Howat, Robin D., etc.
By Brown, Doug, Howat, Robin D., Mullan, Edward C. K., Nisbet, Ken
By Brown, Doug, Hunter, Jim, Hodge, J. L., Mulan, E.C.K., Robertson, A.G., Howat, Robin D., Nisbet, Ken
By Hunter, Jim, Brown, Doug, Hodge, J. L., Robertson, A.G., Howat, Robin, Mullan, E.C.K., Nisbet, Ken
By Hunter, Jim, Brown, Doug, Hodge, J. L., Robertson, A.G., Howat, Robin D., Mullan, Edward C. K., Nisbet, Ken
By Newman, Graham, Bull, Ron
By Brown, G., Marra, Glenys, Methven, Katrona, Mullan, Edward C. K., Murray, Ruth, Thomson, J.
By Brown, D., etc.
By Noonan, Jim, Bevis, Terry, Cain, Gay, Martin, Brian, Mitchell, Christine, Powell, Robert, Wood, Gwen
By Martin, B Et Al