(1923). The World almanac and book of facts. Press Pub. Co.
Cita Chicago (17th ed.)The World Almanac and Book of Facts. New York: Press Pub. Co, 1923.
Cita MLA (8th ed.)The World Almanac and Book of Facts. Press Pub. Co, 1923.
Atenció: Aquestes cites poden no estar 100% correctes.