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260			_bThe International food Policy research Institute.
245			_aSeasonal variability in third world agriculture.
300			_a366p.
260			_aLondon.
260			_c1989.
130			_lEn.
100			_aSAHN,E.David.
020			_a0-8018-3829-0 (alk.paper)
999			_c24177 _d24177