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1
Forest dreams, forest nightmares the paradox of old growth in the Inland West /
Опубликовано 1995An electronic book accessible through the World Wide Web; click to view
Электронный ресурс eКнига -
2
The Jefferson National Forest an Appalachian environmental history /
Опубликовано 2011An electronic book accessible through the World Wide Web; click to view
Электронный ресурс eКнига -
3
Preserving nature in the national parks a history : with a new preface and epilogue /
Опубликовано 1997An electronic book accessible through the World Wide Web; click to view
Электронный ресурс eКнига