Meditiations on the First Philosophy
Rene Descartes
Gurdjieff - A Very Great Enigma
John G. Bennett
Deductive Logic in Natural Language
Douglas Cannon
Computer Music Instruments: Foundations, Design and Development
Victor Lazzarini
Historical dictionary of Leibniz's philosophy
Stuart C. Brown & N. J. Fox
Historical dictionaries of religions. philosophies. and movements (66)
Modeling Forest Trees and Stands
Harold E. Burkhart & Margarida Tomé