McCullough-Phillips. Charles Walters. The University Press of Kentucky.
Chicago Style (17. basım) AtıfMcCullough-Phillips. Charles Walters. The University Press of Kentucky.
MLA (9th ed.) AtıfMcCullough-Phillips. Charles Walters. The University Press of Kentucky.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..