Biographical Dictionary of Twentieth-Century Philosophers by 
The Dictionary of Eighteenth-Century British Philosophers by 
Dictionary of Eighteenth-Century German Philosophers by 
The Dictionary of Nineteenth-Century British Philosophers by 
The Dictionary of Seventeenth-Century French Philosophers by 
The Dictionary of Seventeenth and Eighteenth-Century Dutch Philosophers by 
Islamic Thought in the Dialogue of Cultures: a Historical and Bibliographical Survey by 
Western Philosophy in China, 1993-1997 by 
