@Misc{BVMC:811593, author = {Menéndez y Pelayo, Marcelino}, title = {Carta de Marcelino Menéndez Pelayo a Juan Valera. Santander, 10 agosto 1889}, url = {https://www.cervantesvirtual.com/obra/carta-de-marcelino-menendez-pelayo-a-juan-valera-santander-10-agosto-1889-811593} }