@book{2095,
	author = {Ardila Figueroa, Lucero and Wilken Márquez, Nelcy Johana},
	title = {Descripción y Análisis Comparativo de Cargos de ETELL  E.S.P /},
	publisher = {Unillanos,},
	year = {2000.},
	address = {Villavicencio :}
}