Humphrey, John, author
A.W. Sijthoff, 1978
Buku Teks
Martin, James A., author
Little, Brown, 1978
Buku Teks
Mehren, Arthur Taylor von, author
Little, Brown, 1965
Buku Teks
Verheul, Johannes Pieter
Kluwer, 1919
Buku Teks
Garnefsky, Andre
V.R.B. Offsetdrukkerij, 1968
Buku Teks