APA (7th ed.) Citation

Geertman, S., Openshaw, S., & Stillwell, J. C. H. (1999). Geographical information and planning. Springer.

Chicago Style (17th ed.) Citation

Geertman, Stan, Stan Openshaw, and John C. H. Stillwell. Geographical Information and Planning. Berlin: Springer, 1999.

MLA (8th ed.) Citation

Geertman, Stan, et al. Geographical Information and Planning. Springer, 1999.