Longitudinal research
| 1. autor: | |
|---|---|
| Format: | Książka |
| Język: | English |
| Wydane: |
Newbury Park, Calif.
Sage
c1991.
|
| Seria: | Sage university papers series. Quantitative applications in the social sciences
no.07-076 |
| Hasła przedmiotowe: |