Duckham, M., Goodchild, M. F., & Worboys, M. (2003). Foundations of geographic information science. London : Taylor & Francis.
Lua i Stíl Chicago (17ú heag.)Duckham, Matt, Michael F. Goodchild, agus Michael Worboys. Foundations of Geographic Information Science. London : Taylor & Francis, 2003.
Lua MLA (9ú heag.)Duckham, Matt, et al. Foundations of Geographic Information Science. London : Taylor & Francis, 2003.
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