Cita APA

(1997). World almanac and book of facts, 1998. World Almanac Books.

Citación estilo Chicago

World Almanac and Book of Facts, 1998. New Jersey: World Almanac Books, 1997.

Cita MLA

World Almanac and Book of Facts, 1998. World Almanac Books, 1997.

Warning: These citations may not always be 100% accurate.