Writers' Program of the Work Projects Administration in the State of Illinois, ebrary, Inc, & Dolinar, B. (2013). The Negro in Illinois: The WPA papers. University of Illinois Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Writers' Program of the Work Projects Administration in the State of Illinois, Inc ebrary, و Brian Dolinar. The Negro in Illinois: The WPA Papers. Urbana: University of Illinois Press, 2013.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Writers' Program of the Work Projects Administration in the State of Illinois, et al. The Negro in Illinois: The WPA Papers. University of Illinois Press, 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.