http://www.flashcardexchange.com/tag/ft3 www.flashcardexchange.com: ft3 Flashcards en-us Tue, 14 Feb 2012 11:07:47 PST Tue, 14 Feb 2012 11:07:47 PST support@flashcardexchange.com 720 http://www.flashcardexchange.com/flashcards/view/1028878 Comparison between theories. 2010-03-04 http://www.flashcardexchange.com/flashcards/view/1028878 http://www.flashcardexchange.com/flashcards/view/488576 Comparison between theories. 2007-08-02 http://www.flashcardexchange.com/flashcards/view/488576