@book{PPN595191290, title = {Teoremas, Problemas y M\'etodos Geom\'etricos Parte 1}, series = {GDML\_Books}, publisher = {Ari\~no}, address = {Zaragoza}, year = {1892}, language = {es}, url = {http://dml.mathdoc.fr/item/PPN595191290} }
Garcia de Galdeano y Yanguas, Zoel. Teoremas, Problemas y Métodos Geométricos Parte 1. GDML_Books (1892), http://gdmltest.u-ga.fr/item/PPN595191290/