Ryan. Roy Wilkins. The University Press of Kentucky.
芝加哥风格引文Ryan. Roy Wilkins. The University Press of Kentucky.
MLA引文Ryan. Roy Wilkins. The University Press of Kentucky.
警告：这些引文格式不一定是100％准确.
APA引文
Ryan. Roy Wilkins. The University Press of Kentucky.
芝加哥风格引文Ryan. Roy Wilkins. The University Press of Kentucky.
MLA引文Ryan. Roy Wilkins. The University Press of Kentucky.