00000nam a2200000 a 4500 20251203090631.0 047187888X 630.2745, D, Low Lowrance, Richard Agricultural Ecosystems: Unifying concepts, Richard Lowrance, eng New York, John-Wiley &Sons., US 1984 x, 233p. 24 cm. A wiley-Interscience Publication Agricultural Ecosystems Stinner, Benjamin R. House, Garfield J. Eng _ 13857 LIBSC C 14511 14511 0 0 0 0 PU PU 1998-04-09 0 630.2745, D, Low 13857 BK