Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Ye, Victor Yifan, y 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.

Cita MLA (9a ed.)

Ye, Victor Yifan, y 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.