6
by Ferraris, Maurizio.
Published 2000
Available via ProQuest Ebook Central
eBook
7
by Hoyos Vásquez, Guillermo.
Published 2012
Available via ProQuest Ebook Central
eBook
13
by Peikoff, Leonard.
Published 1982
Book
14
by Roberts, Julian.
Published 1988
Book
19
20
by Dilthey, Wilhelm.
Published 1990
Available via ProQuest Ebook Central
eBook