Dyfyniad APA

John Wright W. (1998). World Almanac and Book of Facts; 1999. World almanac Books.

Dyfyniad Arddull Chicago

John Wright W. World Almanac and Book of Facts; 1999. New York: World almanac Books, 1998.

Dyfyniad MLA

John Wright W. World Almanac and Book of Facts; 1999. World almanac Books, 1998.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.