Columbia subject headings:
Community life--Information services--United States.
Libraries and community.
Public libraries--Reference services--United States.
Public welfare--Information services--United States.
Social service--Information services--United States.
Harvard subject headings:
Community information services--United States.
Libraries and community.
Public libraries--Reference services--United States.
Public welfare--United States--Information services.
Social service--United States--Information services.
Princeton subject headings:
Community information services--United States.
Libraries and community.
Public libraries--Reference services--United States.
Public welfare--United States--Information services.
Social service--United States--Information services.