Bracken, I., Webster, C. Information Technology in Geography and Planning. London etc.: Routledge, 1990 444 p. il. 0-415-03201-6.
Bracken, I., Webster, C. Information Technology in Geography and Planning. London etc.: Routledge, 1990 444 p. il. 0-415-03201-6.
Bracken, I., Webster, C. (1990) Information Technology in Geography and Planning, London etc.: Routledge 444 p. il. 0-415-03201-6.
Bracken, I., & Webster, C. (1990). Information Technology in Geography and Planning. Including Principles of GIS. London etc.: Routledge, 444 p. il.
Bracken I, Webster C. Information Technology in Geography and Planning: Including Principles of GIS. London etc.: Routledge; 1990. p. 444 p. il. ISBN: 0-415-03201-6.