BCS, The Chartered Institute for IT, ebrary, Inc, & Lavington, S. (2012). Alan Turing and his contemporaries: Building the world's first computers. British Informatics Society Ltd..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)BCS, The Chartered Institute for IT, Inc ebrary, و Simon Lavington. Alan Turing and His Contemporaries: Building the World's First Computers. Swindon, U.K.: British Informatics Society Ltd., 2012.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)BCS, The Chartered Institute for IT, et al. Alan Turing and His Contemporaries: Building the World's First Computers. British Informatics Society Ltd., 2012.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.