Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C29761
Notes:
Pages 109-114 in Thomas R. Dunlap (Ed.), DDT, Silent Spring and the rise of environmentalism: classic texts. University of Washington Press, Seattle. 152 pages.
Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C37032
Notes:
Pages 21-36 in Bill Vitek and Wes Jackson (eds.), The virtues of ignorance: complexity, sustainability and the limits of knowledge. University Press of Kentucky, Lexington. 354 pages.