TY  - BOOK
AU  - Heinz, John P
AU  - Laumann, Edward O
AU  - Nelson, Robert L
AU  - Salisbury, Robert H
TI  - Hollow core : private interests in national policy making 
SN  - 0674405250 
U1  - 324.40973 22
PY  - 1993///
CY  - Cambridge
PB  - Harvard University Press
ER  -