Krul-Steketee, J., author
Gouda Quint BV, 1993
Buku Teks
Gurvitch, Georges, author
Kegan Paul, 1947
Buku Teks
Castex, Piere Georges
Hatier-Boivin, 1967
Buku Teks
Jolley, Elizabeth, author
Penguin Books, 1993
Buku Teks
Enderle, Georges
S.l. s.n., 19-m,
Buku Teks