Logic (Introductory monographs in mathematics)
Aesthetics: An Introduction (Modern Introductions to Philosophy)
Introduction to the Philosophy of Religion (Modern Introductions to Philosophy)
An Introduction to the Logic of the Sciences
The logic of scientific inference: An introduction (Modern introductions to philosophy)
An Introduction to Digital Logic
Introduction to the Basic Concepts and Problems of Modern Logic
The Core of Mathematics An Introduction to Modern Mathematics
Studies in Structure (Introduction Monographs in Mathematics)
An Introduction to the Philosophy of Bernard Lonergan