共 76 条
[2]
[Anonymous], ASSESSMENT CLIMATE C
[3]
[Anonymous], LEGAL ASPECTS LANDLO
[4]
[Anonymous], SELECT COMMITTEE INV
[5]
[Anonymous], 1939, An American Exodus: A Record of Human Erosion
[6]
[Anonymous], 2000, CLIM CHANG IMP US PO
[7]
[Anonymous], CREDIT PROBLEMS OKLA
[8]
[Anonymous], STUDY 6655 MIGRANT H
[9]
[Anonymous], RED RIVER VALLEY HIS
[10]
Arndt D.S., 2002, The Oklahoma Drought of 2001-2002