Strauss, W., & Parks, T. (2023). The fourth turning: What the cycles of history tell us about america's next rendezvous with destiny (Unabridged.). Books on Tape.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Strauss, William, و Tom Parks. The Fourth Turning: What the Cycles of History Tell Us About America's Next Rendezvous with Destiny. Unabridged. New York: Books on Tape, 2023.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Strauss, William, و Tom Parks. The Fourth Turning: What the Cycles of History Tell Us About America's Next Rendezvous with Destiny. Unabridged. Books on Tape, 2023.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.