TY  - BOOK
ED  - American Management Association
TI  - Controlling employee benefit and pension costs
T2  - Special report
U1  - 331.255 
PY  - 1957///
CY  - New York, N.Y.
PB  - AMA
KW  - SEGURIDAD SOCIAL
KW  - SEGUROS SOCIALES
UR  - https://es.wikipedia.org/wiki/Jay_Forrester
ER  -