Foley, Kayla. "Mark Barr." New Georgia Encyclopedia, last modified Jan 12, 2016. https://www.georgiaencyclopedia.org/articles/arts-culture/mark-barr/
Foley, K. (2015). Mark Barr. In New Georgia Encyclopedia. Retrieved Jan 12, 2016, from https://www.georgiaencyclopedia.org/articles/arts-culture/mark-barr/
Foley, Kayla. "Mark Barr." New Georgia Encyclopedia, 22 October 2015, https://www.georgiaencyclopedia.org/articles/arts-culture/mark-barr/.
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