APA (7th ed.) Citation

Heywood, D. I., Carver, S., & Cornelius, S. (2002). An introduction to geographical information systems (Second edition.). Pearson Education.

Chicago Style (17th ed.) Citation

Heywood, D. Ian, Steve Carver, and Sarah Cornelius. An Introduction to Geographical Information Systems. Second edition. Harlow: Pearson Education, 2002.

MLA (9th ed.) Citation

Heywood, D. Ian, et al. An Introduction to Geographical Information Systems. Second edition. Pearson Education, 2002.