Logic in 1968

Science a Road to Wisdom: Collected Philosophical Studies by Beth, Evert Willem

Studies in Analogy by McInerny, Ralph M.

Jenenser Logik Metaphysik Und Naturphilosophie by Hegel, G. W. F.

Philosophical Logic by Arrington, Robert L., Burkholder, Peter M., Dubose, Shannon

Sense and Reference in Frege's Logic by Thiel, C.

Topics in Philosophical Logic by Rescher, N.

The Improvement of Mankind: The Social and Political Thought of John Stuart Mill by Robson, John M.