Gaya APA
Willemsen, M. (1998).
In memoriam Jilis A.J. Verheijen SVD: 26 March 1908 - 25April 1997. A collector's life. .
:
.
Gaya MLA
Willemsen, Marie-Antoinette.
"In memoriam Jilis A.J. Verheijen SVD: 26 March 1908 - 25April 1997. A collector's life. ".
:
,
1998.
Majalah.