00929nam a2200229Ia 4500001000700000003000500007008004100012010001100053040000900064082001500073100002500088245012200113260005600235300000900291440000500300500013900305503001100444650012100455650004000576650004500616650003800661Z_4295CHAP220113s1988    xx            000 0 und d  a167360  cCHAP  a630.215 A5  aAllen, Patricia, ed.  aGlobal perspectives on agroecology and sustainable agricultural systems  /cEd. by Patricia Allen and Debra Van Dusen  aSanta Cruz, Ca.  :bUniversity of California,c1988  a2 v.  a  aTomado de International Scientific Conference of the International Federation of Organic Agriculture Movements (6 : 1986 : Santa Cruz)  a144165  aAgricultura subsistencia I. Van Dusen, Debra II. International Conference of the International Federation of Organic  aAgriculturaxAspectos económicos   aAgriculturaxInvestigaciónxCongresos   aEcología agrícolaxCongresos