Carnap, Rudolf (1953) 'Testability and Meaning', Philosophy of Science3(4) (1936-7)
2.
, reprinted, with omissions, in Readings in the Philosophy of Science, ed. Herbert Feigl and May Brodbeck.New York: Appleton-Century-Crofts .
3.
Carnap, Rudolf (1967) 'Empiricism, Semantics and Ontology', Revue Internationale de PhilosophieIV (1920),
4.
reprinted in The Linguistic Turn, ed. Richard Rorty.Chicago, IL: University of Chicago Press.
5.
Carnap, Rudolf (1969) The Logical Structure of the World & Pseudoproblems in Philosophy, trans. Rolf A. George. Los Angeles: University of California Press.
6.
Friedman, Michael (1991) 'The Re-evaluation of Logical Positivism', Journal of PhilosophyLXXXVIII(10) (October): 505-19.
7.
Neurath, Otto (1959) 'Sociology and Physicalism', trans. Morton Magnus and Ralph Raico, in Logical Positivism, ed. A. J. Ayer.New York: Free Press.