Doble, Marion, author
M. Nijhoff, 1960
Buku Klasik
West Publishing, 1985
Buku Referensi
Doble, Marion, author
Martinus Nijhoff, 1960
Buku Referensi
Colin Titmus, Paz Buttedahi, Diana Inonside, Paul Lengrand
Unesco, 1979
Buku Referensi
Pradez, El.
Payot, 1951
Buku Referensi