Columbia subject headings:
Bys, Johann Rudolf, 1662-1738--Catalogues raisonnés.
Bys, Johann Rudolf, 1662-1738--Criticism and interpretation.
Harvard subject headings:
Bys, Johann Rudolf, 1662-1738
Bys, Johann Rudolf, 1662-1738--Catalogues raisonnés.
Princeton subject headings:
Bys, Johann Rudolf, 1662-1738--Catalogues raisonnés.
Bys, Johann Rudolf, 1662-1738--Criticism and interpretation.