Spinoza, Baruch
On the improvement of the understanding / Baruch Spinoza; translated, Joseph Katz
BobbsMerrill, 1958
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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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Patrick, George Thomas White
Introduction to philosophy
George Allen and Unwin, 1925
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Smith, Norman Kemp
Descartes philosophical writings / selected and translated by Norman Kemp Smith
The Modern Library, 1958
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