APA (7th ed.) Citation

Heywood, D. I., Carver, S., & Cornelius, S. (2006). An introduction to geographical information systems (3rd ed.). Pearson/Prentice Hal.

Chicago Style (17th ed.) Citation

Heywood, D. Ian, Steve Carver, and Sarah Cornelius. An Introduction to Geographical Information Systems. 3rd ed. Harlow, England: Pearson/Prentice Hal, 2006.

MLA (9th ed.) Citation

Heywood, D. Ian, et al. An Introduction to Geographical Information Systems. 3rd ed. Pearson/Prentice Hal, 2006.