Columbia subject headings:
Harvard subject headings:
Libraries--Handbooks, manuals, etc.
Library materials--Handbooks, manuals, etc.
Public services (Libraries)--Handbooks, manuals, etc.
Reference books--Handbooks, manuals, etc.
Research--Methodology--Handbooks, manuals, etc.
Princeton subject headings:
Library materials--Handbooks, manuals, etc.
Public services (Libraries)--Handbooks, manuals, etc.
Reference books--Handbooks, manuals, etc.
Research--Methodology--Handbooks, manuals, etc.