Abney, A. E. (2007). Wings over Illinois. Southern Illinois University Press : published for the Department of Aviation Management and Flight, Southern Illinose University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Abney, Arthur E. Wings over Illinois. Carbondale: Southern Illinois University Press : published for the Department of Aviation Management and Flight, Southern Illinose University, 2007.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Abney, Arthur E. Wings over Illinois. Southern Illinois University Press : published for the Department of Aviation Management and Flight, Southern Illinose University, 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.