@Misc{BVMC:291176,
author = {Villacorta, Abel V.},
title = {Nociones de fortificaciones de campaña},
publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2012},
year = {2012},
url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmcv12q3}
}