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 Dubose, Shannon, Arrington, Robert L., Burkholder, Peter M.

Topics in Philosophical Logic by Rescher, N.

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

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