TY  - RPRT
TI  - Age differences in personality structure: a cluster analytic approach.
AU  - P T Costa
AU  - R R McCrae
PY  - 1976
DO  - 10.1093/geronj/31.5.564
UR  - https://pubmed.ncbi.nlm.nih.gov/950450/
ID  - 950450
ER  -