00540nam a2200193Ia 4500001000700000003000500007008004100012010001100053040000900064082001400073100002600087245007700113260004300190300001900233440000500252500004400257503000800301650003700309Z_3681CHAP220113s1994    xx            000 0 und d  a166763  cCHAP  a633.2 P4y  aPearson, C. J.eautor  aAgronomía de los sistemas pastoriles  /cby C.J. Pearson and R.L. Ison  aBuenos Aires  :bHemisferio Sur,c1994  a157 p. ; ilus.  a  aTrad. De : Agronomy of grassland system  aC/E  aPastizales I. Ison, R. L. II. t.