APA引文

(1968). The World almanac and book of facts. The New World-Telegram.

芝加哥风格引文

The World Almanac and Book of Facts. New York: The New World-Telegram, 1968.

MLA引文

The World Almanac and Book of Facts. The New World-Telegram, 1968.

警告：这些引文格式不一定是100％准确.