@book{84923,
	author = {Alvarado Quirós, Alejandro, 1876-1945},
	title = {Guillermo Valencia},
	year = {31 jul. 1943},
	address = {San José},
	url = {http://www.repositorio.una.ac.cr/bitstream/handle/11056/11186/31-JULIO-1943.pdf?sequence=1}
}