Burrough, P. A., McDonnell, R., McDonnell, R. A., & McDonnel, R. A. (1998). Principles of geographical information systems. Oxford New York: Oxford University Press.
Παραπομπή Chicago StyleBurrough, P. A., Rachael McDonnell, Rachael A. McDonnell, and Rachael A. McDonnel. Principles of Geographical Information Systems. Oxford New York: Oxford University Press, 1998.
Παραπομπή MLABurrough, P. A., Rachael McDonnell, Rachael A. McDonnell, and Rachael A. McDonnel. Principles of Geographical Information Systems. Oxford New York: Oxford University Press, 1998.
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