Logical thinkingde Richard L. PurtillMateriasLogicProblems, exercisesLogic, problems, exercises, etc.Ediciones (2)Logical thinking (1994)University Press of America · inglésLogical thinking (1972)Harper & Row · inglésMás obras de Richard L. PurtillPPhilosophical QuestionsPhilosophical QuestionsRReason to believeReason to believeMoral dilemmas : readings in ethics and social philosophy