Cita APA

Sarah Janssen. (2008). The WORLD almanac and book of facts 2008. World Almanac Books.

Citación estilo Chicago

Sarah Janssen. The WORLD Almanac and Book of Facts 2008. World Almanac Books, 2008.

Cita MLA

Sarah Janssen. The WORLD Almanac and Book of Facts 2008. World Almanac Books, 2008.

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