@Book{BVMC:1051045,
author = {Castillejo, José},
title = {Carta de J. Castillejo a Rafael Altamira. Madrid, 7 de mayo de 1912},
publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2020},
year = {2020},
url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmc1051045}
}