St. Gertrudis: tentoonstelling.

MLA

St. Gertrudis: Tentoonstelling. Heverlee: Excelsior, 1959.

APA

(1959). St. Gertrudis: tentoonstelling. Heverlee: Excelsior.

Chicago

St. Gertrudis: Tentoonstelling. Heverlee: Excelsior, 1959.