@book{11797,
	author = {Bran Shaw, Erick Roberto},
	url = {http://fausac.usac.edu.gt/tesario/tesis/CEDIA-01458.pdf},
	title = {Monografía del municipio de Guanagazapa, departamento de Escuintla.},
	address = {Guatemala,},
	publisher = {USAC, Facultad de Agronomía:},
	year = {c1982}
}