Modern American Environmentalists, A Biographical Encyclopedia, Johns Hopkins University Press, George A. Cevasco,Biography: science, technology and medicine,Biography: general, twentieth-century environmental movement;environmental conservation;environmental history;modern American environmental movement,, , United States, en-UShttps://www.press.jhu.edutwentieth-century environmental movement;environmental conservation;environmental history;modern American environmental movement, [BLURB],[CITY],,books, ebooks, biblet, Book2look