APA (7th ed.) Citation

(1966). The world and its peoples: USA. Greystone Press.

Chicago Style (17th ed.) Citation

The World and Its Peoples: USA. New York: Greystone Press, 1966.

MLA (8th ed.) Citation

The World and Its Peoples: USA. Greystone Press, 1966.

Warning: These citations may not always be 100% accurate.