Merriam-Webster's Dictionary of Quotations
Merriam-Webster
Just So
Alan W. Watts
The Theory of Social and Economic Organization
Max Weber
History and Philosophy of Modern Mathematics
William Aspray & Philip Kitcher
Grassmann Algebra - Draft
John Browne
Principles of Knowledge Representation and Reasoning: Proceedings ...
Jon Doyle & Erik Sandewall & Pietro Torasso
Representations of Commonsense Knowledge
Ernest Davis