Santayana, George
Columbia University Press, 1995
Buku Teks
Camus, Albert, 1913-1960
Vintage Books, 1955
Buku Teks
Costa, Horacio La de
Solidaridad Publishing House, 1965
Buku Teks
Whitehead, Alfred North, 1861-1947
The Free Press , 1968
Buku Teks
Wallace, Alfred Russel, 1823-1913
Cambridge University Press, 2013
Buku Teks