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Andrew Hodges & Douglas R. Hofstadter
The Secret of the Cathars
Michael Hillier
Adventure, Mystery, Romance (4)
The Lost Teachings of the Cathars: Their Beliefs and Practices
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Mathematical Analysis: An Introduction to Functions of Several ...
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Seize the Book, Jail the Author: Johann Lorenz Schmidt and Censorship ...
Paul Spalding
Understanding Piaget
Remy Droz & Maryvonne Rahmy