References
Eyewitness Travel Guide (1997) Amsterdam. London, Dorling Kindersley. pp. 120-1.
Götz, V. (1998) Color and Type for the Screen. Berlin, RotoVision (in collaboration with Grey Press).
Hartley, J. (1994) Designing Instructional Text. 3rd edn. London, Kogan Page.
Michaelis, P. R. and Wiggins, R. H. (1982) ‘A human factors engineer’s introduction to speech synthesisers’. In Badre, A. and Shneiderman, B. (eds) Direction in Human–Computer Interaction. Norwood, NJ, Ablex. pp. 149–78.
Rivlin, C., Lewis, R. and Davies Cooper, R. (eds) (1990) Guidelines for Screen Design. Oxford, Blackwell Scientific.
Tufte, E. R. (1990) Envisioning Information. Cheshire, CT, Graphic Press.