WORLD Health Organization
Safe use of pesticides - Geneva WHO 1979 - 44 p.- - WHO technical report series 634 .
9241206349
Pesticide-public safety
WHO technical report series 633
363.1792 / WOR
Safe use of pesticides - Geneva WHO 1979 - 44 p.- - WHO technical report series 634 .
9241206349
Pesticide-public safety
WHO technical report series 633
363.1792 / WOR