Columbia subject headings:
Libraries--Handbooks, manuals, etc.
Libraries--United States--Handbooks, manuals, etc.
Library resources--United States--Handbooks, manuals, etc.
Library science--United States--Handbooks, manuals, etc.
Reference books--Bibliography.
Reference books.
Harvard subject headings:
Princeton subject headings:
Libraries--United States--Handbooks, manuals, etc.
Library resources--United States--Handbooks, manuals, etc.
Library science--United States--Handbooks, manuals, etc.
Reference books--Bibliography.