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141by Livingston, Douglas“...National Park Service,...”
Published 1994
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142
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143by Catton, Theodore“...National Park Service,...”
Published 1995
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144by Zobel, Donald B.“...[National Park Service?],...”
Published 1978
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145by Louter, David“...National Park Service,...”
Published 1995
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146by Buchel, Susan“...[National Park Service?],...”
Published 1985
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147by Barbour, Barton H., 1951-“...National Park Service,...”
Published 2000
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148by Zenzen, Joan M.“...[National Park Service?],...”
Published 2004
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149by Bruggeman, Seth C., 1975-“...National Park Service,...”
Published 2006
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150
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152
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153by Hanover, Elmer“...[National Park Service?],...”
Published 1996
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154by Birk, Douglas A. (Douglas Arthur), 1943-“...National Park Service,...”
Published 2006
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155by White, Bruce M., 1951-“...National Park Service,...”
Published 2005
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156
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159
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160Published 1928“...National Park Service,...”
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