Columbia subject headings:
Equality.
Librarians--Professional ethics.
Libraries and society.
Library science--Social aspects.
Harvard subject headings:
Equality.
Librarians--Professional ethics
Libraries and society.
Library science--Moral and ethical aspects
Library science--Social aspects.
Princeton subject headings:
Equality.
Librarians--Professional ethics.
Libraries and society.
Library science--Moral and ethical aspects.
Library science--Social aspects.