Create a bibliography entry for the book or journal article the figure appears in. Use the usual book or article style.
Reference the print book or journal article, and add a figure or table number (if available) and title.
1 Mohammed Chaichian. Empires and Walls: Globalization, Migration, and Colonial Domination (BRILL, 2014),198, Table 7.3 Population of U.S.-Mexico Border Twin Cities, 1930– 2020 (projected), http://ebookcentral.proquest.com/lib/acu/detail.action?docID=1579995.
3 Chaichian, Empires and Walls.