Whitehead, Alfred North, 1861-1947
An introduction to mathematics
Oxford University Press, 1969
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Hales, Steven D.
This is philosophy: an introduction
Wiley Balckwell, 2013
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Maritain, Jacques, 1882-1973
An introduction to philosophy
Rowman &​ Littlefield Publishers, 2005
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Randall, John Herman
Philosophy : an introduction
Barnes & Noble, 1957
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Brightman, Edgar Sheffield
An Introduction to philosophy
Holt, Rinehart and Winston, 1961
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