@Book{BVMC:788674, author = {Sáenz Hayes, Ricardo}, title = {Carta de Ricardo Sáenz Hayes a Manuel Ugarte. Buenos Aires, 28 de marzo de 1907}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2017}, year = {2017}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmcvb082} }