Columbia subject headings:
Harvard subject headings:
Antiquarian booksellers--Canada--Directories.
Antiquarian booksellers--United States--Directories.
Book collecting--Canada.
Book collecting--United States
Libraries--Special collections--Rare books
Manuscripts--Collectors and collecting.
Rare book libraries--Canada.
Rare book libraries--United States.
Rare books
Rare books--Collectors and collecting.
Rare books--Library resources--Directories.
Rare books--United States--Bibliography
Rare books--United States--Library resources--Directories.
Princeton subject headings:
Antiquarian booksellers--Canada--Directories.
Antiquarian booksellers--United States--Directories.
Libraries--Special collections--Rare books.
Manuscripts--Collectors and collecting.
Rare books--Bibliography.
Rare books--Collectors and collecting.
Rare books--Library resources--United States--Directories.