APA引文

Donald, I. (1969). Practical obstetric problems. Lloyd-Luke.

芝加哥风格引文

Donald, Ian. Practical Obstetric Problems. London: Lloyd-Luke, 1969.

MLA引文

Donald, Ian. Practical Obstetric Problems. Lloyd-Luke, 1969.

警告：这些引文格式不一定是100％准确.