- Liang, J.; Bollen, K.A.; Lawrence, R.H.
- Age Differences in The Structure of The Philadelphia Geriatric Center Morale Scale.
- Psychology and Aging, 1986, Vol. 1, 27 - 33
- 0882 7974
- English (Australia, Canada, UK, USA)
Eligible for inclusion in findings archive
- No, no valid measure of happiness used.