Hilbert, Nathan, Jennifer Evans-Cowley, Jason Reece, Christy Rogers, Wendy Ake, and Casey Hoy. 2014. “Mapping the Cost of a Balanced Diet, As a Function of Travel Time and Food Price”. Journal of Agriculture, Food Systems, and Community Development 5 (1). Ithaca, NY, USA:105-27. https://doi.org/10.5304/jafscd.2014.051.010.