Wolff, Betje
Zwolle Tjeenk Willink 1954
Buku Teks
Asimov, Isaac, author
Grafton Books, 1990.
Buku Teks
Faro, Isaac
EM. Querido's Uitgeverij N.V, 1963
Buku Teks
Asimov, Isaac, author
Collier Books, 1962
Buku Teks
Satre, Jean-Paul
Presses Universitaires de France, 1950
Buku Teks