TY - BOOK AU - Lauk, Jon. TI - American agriculture and the problem of monopoly: the political economy of grain belt farming, 1953-1980 SN - 0803229321 U1 - 338.1 PY - 2000/// CY - Lincoln, NE PB - University of Nebraska KW - Agricultura KW - Aspectos economicos KW - E.U.A KW - Política agrícola ER -