Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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