TY  - CHAP
A1  - Eckstein, H.
T1  - Case studies and theory in political science
Y1  - 1975
A3  - Greenstein, F.I.
A3  - Polsby, N.W. 
T2  - Political science: Scope and theory
CY  - Reading, MA
PB  - Addison-Wesley

ER  -