Book Rothman, Hal K. (2000)
Saving the Planet: The American Response to the Environment in the Twentieth Century. (/isis/citation/CBB000640535/) unapi

Book Clements, Kendrick A. (2000)
Hoover, Conservation, and Consumerism: Engineering the Good Life. (/isis/citation/CBB000630372/) unapi

Book Lowenthal, David (2000)
George Perkins Marsh: Prophet of Conservation. (/isis/citation/CBB000111913/) unapi

Article Kroll, Gary (2000)
Roy Chapman Andrews and the business of exploring: Cetology and conservation in progressive America. Endeavour: Review of the Progress of Science (p. 79). (/isis/citation/CBB000111882/) unapi

Book Weiner, Douglas R. (2000)
Models of Nature: Ecology, Conservation, and Cultural Revolution in Soviet Russia. (/isis/citation/CBB000500738/) unapi

Thesis Gary M. Kroll (2000)
Exploration in the Mare Incognita: Natural History and Conservation in Early Twentieth Century America. (/isis/citation/CBB406919324/) unapi

Thesis Dodd, Douglas W. (2000)
Preserving multiple-use management: The United States Forest Service, the National Park Service, and the struggle for Idaho's Sawtooth Mountain Country, 1911--1972. (/isis/citation/CBB001562589/) unapi

Book Evans, Sterling (1999)
The Green Republic: A Conservation History of Costa Rica. (/isis/citation/CBB000111079/) unapi

Book Miller, Sally M. (1999)
John Muir in historical perspective. (/isis/citation/CBB000110616/) unapi

Chapter Williams, James C. (1998)
Energy, conservation, and modernity: The failure to electrify railroads in the American west. In: Western technological landscapes (p. 51). (/isis/citation/CBB001181484/) unapi

Article Bowley, Patricia (1997)
The Committee on Lands of the Conservation Commission, Canada, 1909--1921: Romantic Agrarianism in Ontario in an Age of Agricultural Realism. Scientia Canadensis: Journal of the History of Canadian Science, Technology, and Medicine (p. 67). (/isis/citation/CBB000650157/) unapi

Book Chase, Alston (1995)
In a Dark Wood: The Fight Over Forests and the Rising Tyranny of Ecology. (/isis/citation/CBB000501916/) unapi