"usda-crop2012" . "Crop Production 2012 Summary"^^ . "2013"^^ . "http://usda01.library.cornell.edu/usda/nass/CropProdSu//2010s/2013/CropProdSu-01-11-2013.pdf"^^ . "report" . "1 year"^^ . . . . . . . _:genid1 . _:genid1 . _:genid1 . _:genid1 .