APA
Hearnshaw H. M., Unwin D. J. & Association for Geographic Information. (1994). Visualization in geographical information systems. Chichester: Wiley [in association with Association for Geographic Information].
Chicago
Hearnshaw Hilary M, Unwin David J and Association for Geographic Information. 1994. Visualization in geographical information systems. Chichester: Wiley [in association with Association for Geographic Information].
Harvard
Hearnshaw H. M., Unwin D. J. and Association for Geographic Information. (1994). Visualization in geographical information systems. Chichester: Wiley [in association with Association for Geographic Information].
MLA
Hearnshaw Hilary M, Unwin David J and Association for Geographic Information. Visualization in geographical information systems. Chichester: Wiley [in association with Association for Geographic Information]. 1994.