Tohutoro APA (7th ed.)
Burrough, P. A., McDonnell, R. A., & Lloyd, C. D. Principles of Geographical Information Systems (3a edición.). Oxford University.
Tohutoru Kātū Chicago (17th ed.)
Burrough, Peter A., Rachael A. McDonnell, me Christopher D. Lloyd. Principles of Geographical Information Systems. 3a edición. Nueva York, EUA: Oxford University.
Tohutoro MLA (9th ed.)
Burrough, Peter A., et al. Principles of Geographical Information Systems. 3a edición. Oxford University.
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