McCullough, D. G. (2017). The American spirit: Who we are and what we stand for (Unabridged.). Simon & Schuster Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMcCullough, David G. The American Spirit: Who We Are and What We Stand for. Unabridged. [New York, NY]: Simon & Schuster Audio, 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMcCullough, David G. The American Spirit: Who We Are and What We Stand for. Unabridged. Simon & Schuster Audio, 2017.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.