• publisher: Nueva York, D. Appleton
  • creator: Calkins, Norman A. (Norman Allison), 1822-1895 Ponce de León, Néstor, 1837-1899 Purón, Juan García, 1852-1912
  • contributor: Ponce de Leo虂n, Ne虂stor, 1837-1899. Puro虂n, Juan Garci虂a, 1852-1912.
  • Keyword: Object-teaching.
  • years: 1903.
  • pages: 418 p.
  • language: spa
  • class: LB1519
  • download: pdf file