Heywood, I., Cornelius, S., & Carver, S. (2011). An introduction to geographical information systems (4a. ed.). Pearson Education Limited.
Chicagoスタイル(17版)引用形式Heywood, Ian, Sarah Cornelius, , Steve Carver. An Introduction to Geographical Information Systems. 4a. ed. Essex: Pearson Education Limited, 2011.
MLA(9版)引用形式Heywood, Ian, et al. An Introduction to Geographical Information Systems. 4a. ed. Pearson Education Limited, 2011.
警告: この引用は必ずしも正確ではありません.