Columbia subject headings:
Harvard subject headings:
Lorents, H. A. (Hendrik Antoon), 1853-1928--Archives.
Netherlands. Algemeen Rijksarchief. Tweede Afdeling--Catalogs.
Physics--History--Sources--Bibliography--Catalogs.
Princeton subject headings:
Lorents, H. A. (Hendrik Antoon), 1853-1928--Archives.
Netherlands. Algemeen Rijksarchief. Tweede Afdeling--Catalogs.
Physics--History--Sources--Bibliography--Catalogs.