@book{49524,
	author = {Bayrón Toro, Fernando,},
	title = {Elecciones y partidos políticos de Puerto Rico},
	publisher = {Editorial Isla},
	year = {1989.},
	address = {Mayagüez, Puerto Rico},
	edition = {4. ed.},
	note = {On cover : Edición de 1989 revisada y ampliada.}
}