Juenger, Friedrich K., author
Martinus Nijhoff , 1993
Buku Teks
Mehren, Arthur Taylor von, author
Little, Brown, 1965
Buku Teks
Ross, Alf, author
Stevens & Sons Limited, 1958
Buku Teks
Freund, Paul A., author
Harvard University Press, 1974
Buku Teks
Ross, Alf, author
University of California Press, 1959
Buku Teks