TY  - BOOK
AU  - Sieber,Georg
TI  - Die Altersrevolution
SN  - 3545370798
PY  - 1972///]
CY  - [Zürich]
PB  - Benziger
KW  -  Age and employment
KW  - Switzerland
KW  - Empleo
KW  - Suiza
KW  - Personas mayores
KW  -  Older people
ER  -