TY  - BOOK
AU  - Robertson David
TI  - Theory of party competition
SN  - 0 471 72737 7
U1  - X:516, L6 
PY  - 1976///
CY  - London
PB  - wiley          
KW  - Competition
N1  - Bibliography: p 208-210; Appendix: p 192-207
ER  -