Pizarro Leongómez, Eduardo. “Giants with Feet of Clay : Political Parties in Colombia.” In The Crisis of Democratic Representation in the Andes, edited by Scott Mainwaring, Ana María Bejarano, and Eduardo Pizarro Leongómez, 359. Stanford, Calif.: Stanford University Press, 2006. https://books.google.fr/books?hl=fr&lr=&id=zT6JjM51CksC&oi=fnd&pg=PA78&dq=pizarro+leongomez,+eduardo&ots=yJfu8rMxkh&sig=bSTzQpeJ2x0S7KIPxQmIfQbykj0.
