Cita APA (7a ed.)
Gierke, O. v., & Maitland, F. W. (1968). Pholitical Theories of the Middle Age.
Cita estilo Chicago (17a ed.)
Gierke, Otto von, y Frederic William Maitland. Pholitical Theories of the Middle Age. 1968.
Cita MLA (9a ed.)
Gierke, Otto von, y Frederic William Maitland. Pholitical Theories of the Middle Age. 1968.
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