'III-GREAT PLAINS', The New Yorker
Tags: 1980s; 1989; 1989-3-6; Agriculture; American Indians; Biology; coal; Droughts; Fossils; Frazier, Ian; Plant Sciences; Wheat
'II-GREAT PLAINS', The New Yorker
Tags: 1980s; 1989; 1989-2-27; Agriculture; American Indians; Biology; coal; Droughts; Fossils; Frazier, Ian; Plant Sciences; Wheat
'I-GREAT PLAINS', The New Yorker
Tags: 1980s; 1989; 1989-2-20; Agriculture; American Indians; Biology; coal; Droughts; Fossils; Frazier, Ian; Plant Sciences; Wheat
'The desert empire', Harpers
Tags: 1970s; 1977; 1977-10-1; Colorado River (Colo.-Mexico); Droughts; Earth Sciences; Geography; History; regulation; Sibley, George; Water-supply; West (U.S.)
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