Cita APA (7a ed.)
Ullmann, W. Law and Politics in the Middle Ages: An Introduction to the Sources of Medieval Political Ideas. Sources of History Limited.
Cita estilo Chicago (17a ed.)
Ullmann, Walter. Law and Politics in the Middle Ages: An Introduction to the Sources of Medieval Political Ideas. Londres, Inglaterra: Sources of History Limited.
Cita MLA (9a ed.)
Ullmann, Walter. Law and Politics in the Middle Ages: An Introduction to the Sources of Medieval Political Ideas. Sources of History Limited.
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