@book{111567,
	title = {Rutas marítimas de Costa Rica },
	publisher = {Legis Editores S.A.},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.legiscomex.com/informacion-universidades-abc-del-comercio-internacional/rutas-maritimas-costa-rica}
}