Deismireacht APA

Heywood, I., Cornelius, S., & Carver, S. (1998). An introduction to geographical information systems. Addison-Wesley longman.

Chicago Edition Citation

Heywood, Ian, Sarah Cornelius, and Steve Carver. An Introduction to Geographical Information Systems. New York: Addison-Wesley longman, 1998.

Deismireacht MLA

Heywood, Ian, et al. An Introduction to Geographical Information Systems. Addison-Wesley longman, 1998.

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