Cita APA (7a ed.)
Carroll, A., & Allen, W. L. A Traveler's Map of Britain and Ireland. National Geographic Society.
Cita estilo Chicago (17a ed.)
Carroll, Allen, y William L. Allen. A Traveler's Map of Britain and Ireland. Washington, EUA: National Geographic Society.
Cita MLA (9a ed.)
Carroll, Allen, y William L. Allen. A Traveler's Map of Britain and Ireland. National Geographic Society.
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