APA引文

(1979). World Almanac & Book of Facts 1979. News Paper Enterprise association.

Chicago Edition Citation

World Almanac & Book of Facts 1979. New York: News Paper Enterprise association, 1979.

MLA引文

World Almanac & Book of Facts 1979. News Paper Enterprise association, 1979.

警告：這些引文格式不一定是100％准確.