Cita APA (7a ed.)
Messner, R. Free Spirit: A Climber's Life (Edición revisada.). Mountaineers Books.
Cita estilo Chicago (17a ed.)
Messner, Reinhold. Free Spirit: A Climber's Life. Edición revisada. Seattle, EUA: Mountaineers Books.
Cita MLA (9a ed.)
Messner, Reinhold. Free Spirit: A Climber's Life. Edición revisada. Mountaineers Books.
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