000 00856nam a2200301Ia 4500
001 Para_6668
003 CHAP
008 220125s1977 xx 000 0 und d
010 _a205515
040 _cCHAP
090 _aPA FOLLETO 661
100 _aZwick, R. W.
245 _aIntegrated control of pear Psylla in Oregon's Hood River Valley /
_c R.W. Zwick and G.J. Fields
260 _aCorvallis :
_b Agricultural Experiment Station
300 _a8 p.
440 _aCircular of information; 660
_9171556
650 _aControl de Plagas
_927595
650 _aPera
_x plagas
_986978
650 _aPsylla pyricola
_992638
700 _aFields, G.J.
901 _aPA FOLLETO 661
902 _aA
905 _a0000001977 0000000000 00
910 _a1977
942 _cPARA
942 _cPARA
_d1
999 _c205515
_d205515