APA Citation

Liu, M. L., & Janssen, S. 1. (2010). The World almanac and book of facts 2010. New York: World Almanac Books.

Chicago Style Citation

Liu, M. L., and Sarah( 1982-) Janssen. The World Almanac and Book of Facts 2010. New York: World Almanac Books, 2010.

MLA Citation

Liu, M. L., and Sarah( 1982-) Janssen. The World Almanac and Book of Facts 2010. New York: World Almanac Books, 2010.

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