Carnap and Goodman; two formalists

Hausman, Alan, 1936-
Iowa City : University of Iowa, 1967.

Carnap and twentieth-century thought : explication as Enlightenment

Carus, A. W.
Cambridge, UK ; New York : Cambridge University Press, 2007.

Four modern philosophers: Carnap, Wittgenstein, Heidegger, Sartre.

Næss, Arne.
Chicago : University of Chicago Press, [1968]

A parting of the ways : Carnap, Cassirer, and Heidegger

Friedman, Michael, 1947-
Chicago : Open Court, [2000]

The philosophy of Rudolf Carnap

La Salle, Ill. : Open Court, 1963.
1st ed.

The Popper-Carnap controversy.

Michalos, Alex C.
The Hague : Nijhoff, 1971.

Sémiotique et philosophie : à partir et à l'encontre de Husserl et de Carnap

Kalinowski, Georges, 1916-2000.
Paris : Hadès ; Amsterdam : Benjamins, [1985]