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- Ecology in literature (5)
- Environmental policy in literature (5)
- Nature in literature (5)
- American literature--History and criticism (4)
- Environmental protection in literature (4)
- Landscape in literature (2)
- English literature--History and criticism (1)
- Environmental literature--History and criticism (1)
- Environmental literature--United States--History and criticism (1)
- Environmental policy--Great Britain--History--19th century (1)
- Environmentalism--United States--History (1)
- Natural history literature--United States--History (1)
- Nature conservation in literature (1)
- Pastoral poetry, English--History and criticism (1)
- Romanticism--England (1)
- Wilderness areas in literature (1)
- Wordsworth, William, 1770-1850--Knowledge--Natural history (1)
- Wordsworth, William, 1770-1850--Political and social views (1)