Title : World almanac & Rowland-Entwistle, T. (1990). The worl almanac infopedia: A visual encyclopedia for students. World Almanac.
Citazione stile Chigago Style (17a edizione)Title : World almanac e Theodore Rowland-Entwistle. The Worl Almanac Infopedia: A Visual Encyclopedia for Students. New York: World Almanac, 1990.
Citatione MLA (9a ed.)Title : World almanac e Theodore Rowland-Entwistle. The Worl Almanac Infopedia: A Visual Encyclopedia for Students. World Almanac, 1990.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.