Columbia subject headings:
Book auctions--Catalogs--Bibliography--Union lists.
Booksellers' catalogs--Bibliography--Union lists.
Publishers' catalogs--Bibliography--Union lists.
Union catalogs--Belgium.
Harvard subject headings:
Book auctions--Catalogs--Bibliography--Union lists.
Booksellers' catalogs--Bibliography--Union lists.
Publishers' catalogs--Bibliography--Union lists.
Union catalogs--Belgium.
Princeton subject headings:
Book auctions--Catalogs--Bibliography--Union lists.
Booksellers' catalogs--Bibliography--Union lists.
Publishers' catalogs--Bibliography--Union lists.
Union catalogs--Belgium.
Union catalogs.