Columbia subject headings:
Older people--California--Los Angeles--Case studies.
Retirement communities--California--Los Angeles--Case studies.
Single people--California--Los Angeles--Case studies.
Harvard subject headings:
Older people--California--Los Angeles--Case studies.
Retirement communities--California--Los Angeles--Case studies.
Single people--California--Los Angeles--Case studies.
Princeton subject headings:
Older people--California--Los Angeles--Case studies.
Retirement communities--California--Los Angeles--Case studies.
Single people--California--Los Angeles--Case studies.