Heer, Cornelis de, translator
J.B.Wolters, 1949
Buku Teks
Flierhaar, H.T.E., author
[publisher not identified], 1941
Buku Teks
Visser, P. de, author
Kluwer, 1971
Buku Teks
Breman, Jan, author
Dordrecht-Holland Foris 1987
Buku Teks
Wiersma, K.
J.B. Wolters Groningen, 1963
Buku Teks