TY  - BOOK
AU  - Bernstein,Robert A.
AU  - Dyer,James A.
TI  - An introduction to political science methods
SN  - 0134933044
U1  - 320.01 
PY  - 1979///,
CY  - New Jersey : 
PB  - Prentice- Hall, Inc.
KW  - Political science
KW  - Political Science - Methods
ER  -