@Misc{BVMC:240034,
author = {Cicerón, Marco Tulio},
title = {Tullius de Officiis},
publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2001},
year = {2001},
url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmcft8j3}
}