Cita APA (7a ed.)

Lewis, D. L. (2008). God's crucible: Islam and the making of Europe, 570 to 1215. W.W. Norton.

Cita Chicago Style (17a ed.)

Lewis, David L. God's Crucible: Islam and the Making of Europe, 570 to 1215. New York [etc.]: W.W. Norton, 2008.

Cita MLA (9a ed.)

Lewis, David L. God's Crucible: Islam and the Making of Europe, 570 to 1215. W.W. Norton, 2008.