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robert engberg

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Ecology Hall of Fame: John Muir
John Muir: To Yosemite and Beyond, Robert Engbergand Donald Wesling, eds. (1980) Summering in the Sierra, Robert Engberg, ed. (1983) John Muir: Letters from Alaska, Robert Engberg andBruce Merrell, eds. (1984) Mountaineering Essays, Richard ...
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