Implements (2) Instruments (2) Taxation (2) Pollution (2) Pollutants (2) Impact (2) Herbicides (2) Programming (2) Contaminantes (2) Herbicidas (2) Contaminación (2) Impuestos (2) Bassin (2) Simulation (2) Programmation (2) Pollution (2) Instruments (2) Simulation (2) Programmation (2) Polluants (2) Impact (2) Mesures (2) Impôt (2) Pollution (2) Herbicides (2) Instruction and study (1) Differentiation (1) Assaying (1) Charts, diagrams, etc (1) Viticulturists (1)