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Política de devolução de 30 dias
This classic book, now published in paperback for the very first time, deals with the age-old questions of persistence and change. It asks questions about why some problems arise and are perpetuated in some instances, but in other instances are resolved. It examines how, paradoxically, common sense and logical approaches often fail while seemingly "illogical" and "unreasonable" actions succeed in producing the desired changes.