Routledge & Kegan Paul
- Routledge & Kegan Paul published the following 2 sources, containing a total of 31 diagrams.
- Fogelin, Robert J. 1967. Evidence and Meaning. Studies in Analytic Philosophy. London: Routledge & Kegan Paul. (31 diagrams)
- Cohen, Morris R., and Ernest Nagel. 1934. An Introduction to Logic and Scientific Method. London: Routledge & Kegan Paul. (0 diagrams)