00342pab a2200109 454500008003600000100002100036245007600057362002800133650001500161650002200176773003400198180718b   xxu||||| |||| 00| 0 eng d  aMainwaring Scott  aPresidentialism, multipartism and democracy : the difficult combination  a26(2) Jul 93, p.198-228  a Democracy  aPolitical Parties  aComparative Political Studies