APA (7 वां संस्करण) प्रशस्ति पत्र

Coyle, D. C. (1954). The United States political system and how it works. New American Library.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Coyle, David Cushman. The United States Political System and How It Works. [New York]: New American Library, 1954.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Coyle, David Cushman. The United States Political System and How It Works. New American Library, 1954.

चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.