00674nam a22002297a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093082001600102100001900118245007200137260004400209300002300253490002800276650003800304650003900342650003500381830002800416CHAP20220329140249.0971013s1975            r     00010     d  a49429  a50401  a54551  cCHAP  a338.960bF300aFarrington, J.  aFarm surveys in Malawib: the collection and analysis of labourdata  a(s.l.) :bEconomics & Management,c1975  a109 p.b: apénd.  aDevelopment studyv; 1614aAgriculturaxModelos matematicos.14aAgriculturaxTrabajadoresxAfrica.14aPolítica agrícolaxAfrica.0 aDevelopment studyv; 16