ebrary, Inc, & Powell, K. M. (2009). "Answer at once": Letters of mountain families in Shenandoah National Park, 1934-1938. University of Virginia Press.
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Chicago-čujuhus (17. p.)
ebrary, Inc, juo Katrina M. Powell. "Answer at Once": Letters of Mountain Families in Shenandoah National Park, 1934-1938. Charlottesville: University of Virginia Press, 2009.
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MLA-čujuhus (9. p.)
ebrary, Inc, juo Katrina M. Powell. "Answer at Once": Letters of Mountain Families in Shenandoah National Park, 1934-1938. University of Virginia Press, 2009.
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