Hart, James, author
Oxford University Press, 1948
Buku Teks
Kunst, Jaap, 1891-1960, author
Martinus Nijhoff , 1967
Buku Teks
Oxford University Press, 1991
Buku Referensi
Oxford University Press, 1991
Buku Referensi
Oxford University Press, 1991
Buku Referensi