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_cBD-SaJUCL
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245 1 0 _aBiological nitrogen fixation for sustainable
_bagriculture: extended versions of papers pre-sented in the symposium, role of biological nitrogen fixation in sustainable agriculture at the 13th Congress of soil science, Kyoto, Japan, 1990
_cedited by J.K. Ladha.
260 _aDordrecht
_bKluwer Academic
_cc1992.
300 _a211p.:ill.
_c27cm.
082 0 4 _a631.4
_bB615
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