APA (7 वां संस्करण) प्रशस्ति पत्र

Helm, W. P. (1947). Harry Truman: A political biography (First edition.). Duell Sloan and Pearce.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Helm, William Pickett. Harry Truman: A Political Biography. First edition. New York: Duell Sloan and Pearce, 1947.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Helm, William Pickett. Harry Truman: A Political Biography. First edition. Duell Sloan and Pearce, 1947.