APA (7th ed.) Citation

Angel, S., Arango Franco, S., Liu, Y., & Blei, A. M. (2020). The shape compactness of urban footprints. Progress in planning, 139, 100429. https://doi.org/10.1016/j.progress.2018.12.001

Chicago Style (17th ed.) Citation

Angel, Shlomo, Sara Arango Franco, Yang Liu, and Alejandro M. Blei. "The Shape Compactness of Urban Footprints." Progress in Planning 139 (2020): 100429. https://doi.org/10.1016/j.progress.2018.12.001.

MLA (9th ed.) Citation

Angel, Shlomo, et al. "The Shape Compactness of Urban Footprints." Progress in Planning, vol. 139, 2020, p. 100429, https://doi.org/10.1016/j.progress.2018.12.001.