@book{2064,
	author = {Betancourt Ramírez, Guadalupe and Ortíz, Ana Inés},
	title = {Manual Interno de Riesgos Profesionales Banco de Colombia Sucursal Villavicencio /},
	publisher = {Unillanos,},
	year = {1999.},
	address = {Villavicencio :}
}