First Exposition of Conservation and Its Builders; an Official History of the National Conservation Exposition, Held at Knoxville, Tenn. , in 1913 and of Its Forerunners, the Appalachian Expositions of 1910-11, Embracing a Review of the Conservation Mo

First Exposition of Conservation and Its Builders; an Official History of the National Conservation Exposition, Held at Knoxville, Tenn. , in 1913 and of Its Forerunners, the Appalachian Expositions of 1910-11, Embracing a Review of the Conservation Mo

Don Carlos Ellis William M. Goodman Gifford Pinchot