Eliza Graumlich – Bowdoin College – Spring 2017 – Education 2272 – Prof. Doris Santoro
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Source: Creative Commons. (2014, July 8). [Piece of Astroturf on Grass]. Retrieved May 15, 2017, from http://newsroom.ucla.edu/stories/whats-the-difference-between-political-grassroots-and-big-interest-astroturf