@book {5971, title = {Breaking New Ground}, year = {1998}, note = {Illustrations}, publisher = {Island Press}, organization = {Island Press}, edition = {Commemorative ed.}, address = {Washington, D.C.}, keywords = {Biographies, Conservation, Natural resources}, author = {Pinchot, Gifford} } @book {5970, title = {Breaking New Ground}, series = {Americana library}, volume = {AL-22 }, year = {1972}, note = {Introduction by James Penick, Jr.}, publisher = {University of Washington Press}, organization = {University of Washington Press}, address = {Seattle, WA}, keywords = {Biographies, Conservation, Natural resources}, author = {Pinchot, Gifford} } @book {5969, title = {Breaking New Ground}, year = {1947}, note = {Illustrations}, publisher = {Harcourt, Brace}, organization = {Harcourt, Brace}, edition = {1st}, address = {New York}, keywords = {Biographies, Conservation, Natural resources}, author = {Pinchot, Gifford} } @article {5086, title = {Timber Trees and Forests of North Carolina}, year = {1897}, note = {Illustrations, Maps}, pages = {1-227}, institution = {North Carolina Geological and Economic Survey}, address = {Winston, NC}, keywords = {Forests, Trees -- Classification and description}, issn = {Bulletin No. 6}, author = {Pinchot, Gifford and Ashe, W W} }