Schachter, O.

problem question decision policy people process science pollution level professor community country lawyer york academy state government economic tinbergen resource scientist thing world organization something conference number change authority environment field academy study professor tinbergen knowledge discussion development control professor mcdougal research recommendation mcdougal future interest approach order court procedure example today annals activity constitutive process power paper solution factor skill course concept price party objective detail birth control effort water attention issue stockholm conference nation technique effect value demand priority respect point consequence context pressure