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Charles Haanel & Gary Vurnum
A Treatise on Probability
John Maynard Keynes
The Philosophy of Henri Bergson, II - Paper
G. N. Dolson
Studies in Logic and the Foundations of Mathematics
A Heyting & A. Mostowski & A. Robinson & P. Suppes
Notes on the Synthesis of Form
Christopher Alexander
Socrates Meets Jesus: History's Greatest Questioner Confronts ...
Peter J. Kreeft