Columbia subject headings:
America--History--To 1810--Bibliography--Union lists.
America--History--To 1810--Sources--Bibliography--Union lists.
Union catalogs--Canada.
Union catalogs--Europe.
Union catalogs--United States.
Harvard subject headings:
America--History--To 1810--Bibliography--Union lists.v
America--History--To 1810--Sources--Bibliography--Union lists.
Union catalogs--Canada
Union catalogs--Europe
Union catalogs--United States
Princeton subject headings:
America--History--To 1810--Bibliography--Union lists.
America--History--To 1810--Sources--Bibliography--Union lists.
Union catalogs--Canada.
Union catalogs--Europe.
Union catalogs--United States.