(2011). Freakonomics / Chad Troutwine presents ; in association with Cold Fusion Media ; a Green Film Company production ; produced by Chad Troutwine, Chris Romano, Dan O'Meara.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Freakonomics / Chad Troutwine Presents ; in Association with Cold Fusion Media ; a Green Film Company Production ; Produced by Chad Troutwine, Chris Romano, Dan O'Meara. 2011.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Freakonomics / Chad Troutwine Presents ; in Association with Cold Fusion Media ; a Green Film Company Production ; Produced by Chad Troutwine, Chris Romano, Dan O'Meara. 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.