By Ridpath, Ian
By Ridpath, Michael
By Card, Orson Scott, Ridpath, Michael, Dibell, Ansen, Turco, Lewis
By Stott, Carole, Hughes, David, Sparrow, Giles, Nicolson, Iain, Ridpath, Ian, Tildsley, Kevin, Spence, Pam, Eales, Philip, Dinwiddie, Robert, Rees, Martin
By Ridpath, Ian, Tirion, Wil
By Tirion, Will, Ridpath, Ian
By Llewellyn, Preston, Adler, Ridpath
By Ridpath, Ian, Philip's Maps
By Norton, Arthur P., etc., Ridpath, Ian, Robinson, Leif