Marks, R. E. (1989). Niche strategies: The prisoner's dilemma computer tournaments revisited. Australian Graduate School of Management, University of New South Wales.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Marks, Robert E. Niche Strategies: The Prisoner's Dilemma Computer Tournaments Revisited. Kensington, New South Wales: Australian Graduate School of Management, University of New South Wales, 1989.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Marks, Robert E. Niche Strategies: The Prisoner's Dilemma Computer Tournaments Revisited. Australian Graduate School of Management, University of New South Wales, 1989.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.