000 00491 a2200169 4500
005 20230607212941.0
050 _aS
_b21
_cA35Agr
245 _aAgriculture and the environment : the 1991 yearbook of agriculture
501 _a23670
650 _aAgriculture - United States
650 _aAgricultural ecology - United States
650 _aAgriculture and state - United States
020 _a-
260 _bU.S. Department of Agriculture
_c1991
942 _cBK
_oS 21 A35Agr
999 _c18418
_d18418