Touchstone 1 - McCarthy, Michael 1947- (Cambridge University Press, 2005)
La Biblioteca contiene: Teacher 's edition / with Sue Aldcorn ... [et al.]--Workbook--Student's book--Self-study audioCD/CD-ROM, level 1--4 discos compactos insertos en estuche--Requisitos del sistema: PC, Pentium II; windows 98 SE o higher; 128 MB RAM; 64 MB available hard-drive space; 8 x CD-ROM drive; Mouse; monitor with thousands of colors and 800 x 600 screen; 8 bit sound car Mac; Macintosh system 8.6 or 9 x or higher; 128 MB RAM; 64 MB available hard-drive space--Los discos pueden ser escuchados tanto en computadora como en algún reproductor de audio--Impreso en Hong Kong, China--Impreso en Lima, Perú