APA (7th ed.) Citation

Judge, E. H., & Langdon, J. W. (2009). Connections: A world history. Vango Books.

Chicago Style (17th ed.) Citation

Judge, Edward H., and John W. Langdon. Connections: A World History. New York: Vango Books, 2009.

MLA (9th ed.) Citation

Judge, Edward H., and John W. Langdon. Connections: A World History. Vango Books, 2009.