Cita APA (7a ed.)

Judge, E. H., & Langdon, J. W. (2012). Connections: A world history (2nd ed., combined vol.). Pearson.

Cita Chicago Style (17a ed.)

Judge, Edward H., y John W. Langdon. Connections: A World History. 2nd ed., combined vol. Boston [u.a.]: Pearson, 2012.

Cita MLA (9a ed.)

Judge, Edward H., y John W. Langdon. Connections: A World History. 2nd ed., combined vol. Pearson, 2012.