Subjects: Environmental sciences -- History -- 20th century; Food security; Water securityVogt, William, 1902-1968; Borlaug, Norman E. 1914-2009
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Subjects: History, Modern; Economic history; Commerce -- HistoryAmerica -- Discovery and exploration -- Economic aspects; America -- Discovery and exploration -- Environmental aspectsColumbus, Christopher -- Influence
Subjects: Indians -- Origin; Indians -- History; Indians -- AntiquitiesAmerica -- Antiquities
Subjects: Computer Mediated Communication; Language Usage; Morphology (Languages)South Africa
Subjects: MICROORGANISMS; HISTORY; COVID-19
Subjects: WATER fluoridation; FLUORIDES; DENTAL caries
Subjects: MENTAL illness
Subjects: FOOD security; DEMOCRACY; MANN, Charles C.UNITED StatesUNITED StatesUNITED StatesReport Available
Subjects: VACATIONS; ORGANIC farming; WHEAT products