@Article{BVMC:932259, author = {Porlan, Alberto}, title = {Formas de botones}, journal = {Cuadernos Hispanoamericanos. Núm. 277-278, julio-agosto 1973}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2018}, year = {2018}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmc0932259} }