Ye, V. Y., & Becker, C. M. (2018). The Z-axis: Elevation gradient effects in urban America. Regional science and urban economics, 70, 312-329. doi:10.1016/j.regsciurbeco.2017.10.002
Chicago Style (17th ed.) CitationYe, Victor Yifan, and Charles M. Becker. "The Z-axis: Elevation Gradient Effects in Urban America." Regional Science and Urban Economics 70 (2018): 312-329. https://doi.org/10.1016/j.regsciurbeco.2017.10.002.
MLA (9th ed.) CitationYe, Victor Yifan, and Charles M. Becker. "The Z-axis: Elevation Gradient Effects in Urban America." Regional Science and Urban Economics, vol. 70, 2018, pp. 312-329, https://doi.org/10.1016/j.regsciurbeco.2017.10.002.
Warning: These citations may not always be 100% accurate.