The Cathars and the Albigensian Crusade: A Sourcebook
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Principles and Techniques of Contemporary Taxonomy
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Meditations on First Philosophy: In Which the Existence of God ...
René Descartes
Psychology of a Superpower: Security and Dominance in U.S. Foreign ...
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The Geostrategic Triad: Living with China, Europe, and Russia
Zbigniew Brzezinski
360 Problems for Mathematical Contests
Titu Andreescu & Dorin Andrica