TY  - BOOK
AU  - The National Social Insurance Fund
TI  - Regulated texts of laws Nº 8433 and 8509; compulsory social insurance
U1  - 22 
PY  - 1936///
CY  - Lima
PB  - National Social Insurance Fund
KW  -  LEGISLACION DE SEGURIDAD SOCIAL
KW  -  PERÚ
KW  - SEGURO SOCIAL
ER  -