na INLIS000000000003787 Inggris 0010-0621000073 Elements of plant protection Louis L. Pyenson Pyenson, Louis L. New York John Wiley & Sons 1951 x, 538 p.: ill.; 21 cm. 632.9 PYE e 632.9 PESTICIDES INSECTICIDES RODENTICIDES MOLLUSCICIDES SPRAYING DUSTING 73/KA/2021