Columbia subject headings:
Friendship--Research.
Interpersonal relations.
Life cycle, Human.
Older people--United States--Interviews.
Sociology--Biographical methods.
Harvard subject headings:
Friendship--Research.
Interpersonal relations
Life cycle, Human.
Older people--United States--Interviews.
Sociology--Biographical methods
Princeton subject headings:
Friendship--Research.
Interpersonal relations.
Life cycle, Human.
Older people--United States--Interviews.
Sociology--Biographical methods.