O'Brien. The Fourth Estate. Manchester University Press.
芝加哥风格引文O'Brien. The Fourth Estate. Manchester University Press.
MLA引文O'Brien. The Fourth Estate. Manchester University Press.
警告：这些引文格式不一定是100％准确.
APA引文
O'Brien. The Fourth Estate. Manchester University Press.
芝加哥风格引文O'Brien. The Fourth Estate. Manchester University Press.
MLA引文O'Brien. The Fourth Estate. Manchester University Press.