Dyfyniad APA

Longley, P. A., Goodchild, M. F., Maguire, D. J., & Rhind, D. W. (2005). Geographical information systems and science (Second edition.). John Wiley.

Dyfyniad Arddull Chicago

Longley, Paul A., Michael F. Goodchild, David J. Maguire, and David W. Rhind. Geographical Information Systems and Science. Second edition. Chichester: John Wiley, 2005.

Dyfyniad MLA

Longley, Paul A., et al. Geographical Information Systems and Science. Second edition. John Wiley, 2005.

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