@book{1854,
	author = {Solano Álvarez, Bernardo},
	url = {http://fausac.usac.edu.gt/tesario/tesis/T-01854.pdf},
	title = {Caficultura sostenible y captura de carbono},
	address = {Guatemala, },
	publisher = {Universidad de San Carlos de Guatemala, Facultad de Agronomía:},
	year = {c2000.}
}