TY  - BOOK
ED  - Gran Bretaña. Department of Social Security
TI  - National insurance for master and employers of mariners
U1  - 368.40942 21
PY  - 1991///
CY  - Gran Bretaña
PB  - Central Office of Information
KW  - Maestros
KW  - Gran Bretaña
KW  - Marinos
KW  - Seguridad social
ER  -