Blake, R. (1975). The office of Prime Minister. Oxford University Press for the British Academy.
芝加哥风格引文Blake, Robert. The Office of Prime Minister. London [etc.]: Oxford University Press for the British Academy, 1975.
MLA引文Blake, Robert. The Office of Prime Minister. Oxford University Press for the British Academy, 1975.
警告：这些引文格式不一定是100％准确.