Name Grupo de Trabajo Software S.A. Releases Name Authors Year Type Availability Libreria de Software Spectrum issue 01 1985 Libreria de Software Spectrum issue 02 1985 Libreria de Software Spectrum issue 03 1985 Libreria de Software Spectrum issue 04 1985 Libreria de Software Spectrum issue 05 1985 Libreria de Software Spectrum issue 06 1985 Libreria de Software Spectrum issue 07 1985 Libreria de Software Spectrum issue 08 1985 Libreria de Software Spectrum issue 09 1986 Libreria de Software Spectrum issue 10 1986 Libreria de Software Spectrum issue 11 1986 Libreria de Software Spectrum issue 12 1986 Libreria de Software Spectrum issue 13 1985 Libreria de Software Spectrum issue 14 Libreria de Software Spectrum issue 15 Libreria de Software Spectrum issue 16 Libreria de Software Spectrum issue 17 1987 Libreria de Software Spectrum issue 18 1987 Libreria de Software Spectrum issue 19 1987 Libreria de Software Spectrum issue 20 1987 Libreria de Software Spectrum issue 21 1987 Libreria de Software Spectrum issue 22 1987 Pack Angel Garcia Delgado 1987 Original release (O) Scuba Dive Mike A. Richardson Tim Hayward 1983 Re-release (R)