Buku yang Dikarang by George Lowell Tollefson

The Immaterial Structure of Human Experience

Spirit as Universal Consciousness

The System of the Mind

Unbridled Democracy and other philosophical reflections

The Thinking Arts

A Healer of Nations

Thoughts on Creativity, Spirit, and the Ethical Life

The Thinking Process

The Limits of Reason

Moral Democracy

Ethical Considerations

Key to the Philosophy of Immaterialism