visto da Tullio Pascoli
DISCORSO SUL LIBERO PENSIERO http://www.liberilibri.it/opera.php?k=120
DISCOURSE ON FREE THINKING http://www.amazon.com/Discourse-Free-Thinking-Occasioned-Thinkers/dp/1165964279/ref=sr_1_5?s=books&ie=UTF8&qid=1299106897&sr=1-5
ANCIENT AND MODERN CELEBRATED FREETHINKERS http://www.amazon.com/Ancient-Modern-Celebrated-Freethinkers-ebook/dp/B0047T7OSG/ref=sr_1_2?s=books&ie=UTF8&qid=1299106956&sr=1-2
PHILOSOPHICAL INQUIRY CONCERNING HUMAN LIBERTY http://www.amazon.com/Philosophical-Inquiry-Concerning-Liberty-Collins/dp/1141449021/ref=sr_1_4?s=books&ie=UTF8&qid=1299106956&sr=1-4