APA(7版)引用形式
Douglass, F., & Ruffin, G. L. (2001). The life and times of Frederick Douglass. Digital Scanning.
Chicagoスタイル(17版)引用形式
Douglass, Frederick, , George L. Ruffin. The Life and Times of Frederick Douglass. Scituate, Mass.: Digital Scanning, 2001.
MLA(9版)引用形式
Douglass, Frederick, , George L. Ruffin. The Life and Times of Frederick Douglass. Digital Scanning, 2001.
警告: この引用は必ずしも正確ではありません.