@Misc{BVMC:249763,
author = {Alas, Leopoldo},
title = {Libros y libracos (El Solfeo, 1875)},
publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2007},
year = {2007},
url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmcf47p3}
}