@Misc{BVMC:236158,
author = {Blázquez, José María},
title = {El Guadalquivir, vía comercial},
publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2007},
year = {2007},
url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmcxp7g9}
}