00673nam a2200205Ia 4500001001000000003000500010008004100015010001100056040000900067082002300076111007300099245009700172260003500269300001100304650002900315650003500344650002100379650003200400700003500432Para_7528CHAP220125s1977    xx            000 0 und d  a206416  cCHAP  aPA 632.58 S95 1976  aSimposium of the Britsh Ecologacal Society Bangar (18: 1976: Oxford)  aOrigins of pest, parasite, disease and weed problems  /c ed. by J.M. Cherrett, y G.R. Sagar  aOxford :b Blacwell Scientific  a413 p.  aCultivos x enfermedades  aCultivos x plagasxcongresos   aFitopatología   aMalas hierbas x congresos   aCherrett, J. M. / Sagar, E. R.