APA Edition Citation

Heywood, D. I., Cornelius, S., & Carver, S. (2002). An introduction to geographical information systems (Second.). Prentice Hall.

Chicago Edition Citation

Heywood, D. Ian, Sarah Cornelius, and Steve Carver. An Introduction to Geographical Information Systems. Second. Harlow, England ; New York: Prentice Hall, 2002.

MLA Edition Citation

Heywood, D. Ian, et al. An Introduction to Geographical Information Systems. Second. Prentice Hall, 2002.