Tropp, Debra. “From Anecdote to Formal Evaluation: Reflections from More Than Two Decades on the Local Food Research Trail at USDA”. Journal of Agriculture, Food Systems, and Community Development 9, no. 1 (August 13, 2019): 13-30. Accessed November 12, 2019. https://foodsystemsjournal.org/index.php/fsj/article/view/725.