00429nam a2200169Ia 4500001001000000003000500010008004100015010001100056040000900067082001900076100002200095245006900117250000600186260003600192300001100228650002000239Para_7521CHAP220125s1950    xx            000 0 und d  a206409  cCHAP  aPA 632 C4 1950  aChester, K. Starr  aNature and prevention of plant diseases  /c by K. Starr Chester  a2  aNew York  :b McGraw Hill Boock  a525 p.  aFitopatología