APA (7th ed.) Citation

Kelley, A. C., & Williamson, J. G. (1980). Modeling urbanization and economic growth. Internat. Inst. for Applied Systems Analysis.

Chicago Style (17th ed.) Citation

Kelley, Allen C., and Jeffrey G. Williamson. Modeling Urbanization and Economic Growth. Laxenburg: Internat. Inst. for Applied Systems Analysis, 1980.

MLA (9th ed.) Citation

Kelley, Allen C., and Jeffrey G. Williamson. Modeling Urbanization and Economic Growth. Internat. Inst. for Applied Systems Analysis, 1980.