Columbia subject headings:
Adulthood--Longitudinal studies.
Defense mechanisms (Psychology)
Emotional maturity.
Harvard subject headings:
Adjustment (Psychology)--Longitudinal studies.
Adulthood--Longitudinal studies.
Defense mechanisms (Psychology)
Defense mechanisms (Psychology)--Longitudinal studies.
Emotional maturity--Longitudinal studies.
Emotional maturity.
Princeton subject headings:
Adjustment (Psychology)--Longitudinal studies.
Adulthood--Longitudinal studies.
Defense mechanisms (Psychology)--Longitudinal studies.
Emotional maturity--Longitudinal studies.