The Philosophy of 'As If': A System of the Theoretical, Practical ...
Hans Vaihinger
The Language of Demons and Angels: Cornelius Agrippa's Occult ...
Christopher I. Lehrich
Principles of Philosophy
Rene Descartes
Designing and Conducting Mixed Methods Research
John W. Creswell & Vicki L. Plano Clark
Philosophy as Therapeia
Jonardon Ganeri & Clare Carlisle
What Is This Thing Called Science? (New and Extended)
Alan Francis Chalmers