APA
Puyvelde L. v. 1., . (1977). P. P. Rubens. Brussel: Meddens.
Chicago
Puyvelde Leo van 1882-1965, . 1977. P. P. Rubens. Brussel: Meddens.
Harvard
Puyvelde L. v. 1., . (1977). P. P. Rubens. Brussel: Meddens.
MLA
Puyvelde Leo van 1882-1965, . P. P. Rubens. Brussel: Meddens. 1977.