By Evyatar, A.
By School Mathematics Project
By Rogers, LCG
By Kline, Morris
By Madachy, Joseph S.
By Williams, Robert
By Ghyka, Matila
By Hunter, J. A. H., Madachy, Joseph S.
By Alastair H. Leyland, Harvey Goldstein
By WAIT, R
By A. C. BAJPAI, I. M. Calus, J. A. Fairley
By BAJPAI, AC
By Campbell, Michael J., Machin, David
By Wester, Michael J.
By Tebbutt, Peter
By Bowers, David
By Whitham, G. B.
By Jennings, Alan, McKeown, J. J.
By Barnett, Lewis
By Flood, Robert L., Jackson, Michael C., Flood
By Goodwin, Paul, Wright, George
By Checkland, Peter, Scholes, Jim
By Smith, P.
By Barlow, R. J.
By BAJPAI, A. C., Mustoe, L. R., Walker, D.