Sarah Janssen. (2008). The WORLD almanac and book of facts 2008. World Almanac Books.
Chicagoスタイル(17版)引用形式Sarah Janssen. The WORLD Almanac and Book of Facts 2008. World Almanac Books, 2008.
MLA(9版)引用形式Sarah Janssen. The WORLD Almanac and Book of Facts 2008. World Almanac Books, 2008.
警告: この引用は必ずしも正確ではありません.