APA (7th ed.) Citation

IGU Working Group on Mathematical Models, Fischer, M. M., Nijkamp, P., & Papageorgiou, Y. Y. (1990). Spatial choices and processes. Elsiever Science.

Chicago Style (17th ed.) Citation

IGU Working Group on Mathematical Models, Manfred M. Fischer, Peter Nijkamp, and Y. Y. Papageorgiou. Spatial Choices and Processes. Amsterdam ; New York: Elsiever Science, 1990.

MLA (9th ed.) Citation

IGU Working Group on Mathematical Models, et al. Spatial Choices and Processes. Elsiever Science, 1990.