@Misc{BVMC:707081,
author = {Bécquer, Gustavo Adolfo},
title = {LXXII - Las ondas tienen vaga armonía},
publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2015},
year = {2015},
url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmcmp6x6}
}