Duckham, M., Goodchild, M. F., & Worboys, M. (2003). Foundations of geographic information science. London : Taylor & Francis.
Chicago-čujuhus (17. p.)Duckham, Matt, Michael F. Goodchild, juo Michael Worboys. Foundations of Geographic Information Science. London : Taylor & Francis, 2003.
MLA-čujuhus (9. p.)Duckham, Matt, et al. Foundations of Geographic Information Science. London : Taylor & Francis, 2003.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.