Messner, R., Höfler, H., Buhl, H., & Carruthers, T. (2000). Hermann Buhl: Climbing without compromise (First english language edition, 2000.). The Mountaineers Books.
Cita Chicago Style (17a ed.)Messner, Reinhold, Horst Höfler, Hermann Buhl, y Tim Carruthers. Hermann Buhl: Climbing Without Compromise. First english language edition, 2000. Seattle: The Mountaineers Books, 2000.
Cita MLA (9a ed.)Messner, Reinhold, et al. Hermann Buhl: Climbing Without Compromise. First english language edition, 2000. The Mountaineers Books, 2000.
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