Citazione Stile APA (7a Edizione)

(1968). The World almanac and book of facts. The New World-Telegram.

Citazione stile Chigago Style (17a edizione)

The World Almanac and Book of Facts. New York: The New World-Telegram, 1968.

Citatione MLA (9a ed.)

The World Almanac and Book of Facts. The New World-Telegram, 1968.