On the meaning of work.
D000328:Adult; D000367:Age Factors; D000368:Aged; D001290:Attitude; D004651:Employment; D005260:Female; D006801:Humans; D007182:Income; D008297:Male; D008875:Middle Aged; D009790:Occupations; D010549:Personal Satisfaction; D011287:Prejudice; D012922:Social Change; D012945:Social Values; D009626:Terminology as Topic; D014481:United States; D014930:Women; D014937:Work