00612nam a2200169Ia 4500001001000000003000500010008004100015010001100056040000900067082001500076100002400091245016100115260005800276300001700334650004700351710004400398Para_7605CHAP220125s1969    xx            000 0 und d  a206557  cCHAP  aPA 632 S87  aStreets, Ruberts B.  aThe diagnosis of plant diseases  :b a field and laboratory manual emphasezing the most practical methods for rapid identification  /c by Rubert B. Streets  aTucson , Arizona  :b The University of Arizona Press  ac.a.  200 p.  aFitopatología x manuales de laboratorio  aArizona Agricultural Experiment Station