Columbia subject headings:
Bible. Ecclesiastes--Criticism, interpretation, etc.
Conduct of life.
Happiness in the Bible.
Happiness--Philosophy.
Harvard subject headings:
Bible. Ecclesiastes--Criticism, interpretation, etc.
Conduct of life.
Happiness in the Bible.
Happiness--Philosophy.
Princeton subject headings:
Bible. Ecclesiastes--Criticism, interpretation, etc.
Conduct of life.
Happiness in the Bible.
Happiness--Philosophy.