Rehfeldt, Bernhard
De Gruyter, 1962
Buku Teks
Husserl, Edmund, author
Claassen & Goverts, 1948
Buku Teks
Nietzsche, Friedrich, author
The Modern Library , [date of publication not identified]
Buku Teks
Nietzsche, Friedrich, author
Alfred Kroner, 1928
Buku Teks
Emge, Carl August
Frankfurt, 1955
Buku Teks