@Misc{BVMC:812853, author = {Menéndez y Pelayo, Marcelino}, title = {Carta de Marcelino Menéndez Pelayo a Juan Valera. Santander, 15 agosto 1890}, url = {https://www.cervantesvirtual.com/obra/carta-de-marcelino-menendez-pelayo-a-juan-valera-santander-15-agosto-1890-812853} }