@book{468061,
  address    = {Lima},
  publisher  = {Ministerio de Educación},
  title      = {Naturaleza y vida social 2},
  url        = {http://www.sil.org/americas/peru/show_work.asp?id=20709},
  year       = {1974},
  country    = {Peru [PE]},
  inlg       = {Spanish [spa]},
  lgcode     = {Arabela [arl]},
  macro_area = {South America},
  sil_id     = {20709},
  src        = {sil16},
  subject    = {Social studies [Zsst]}
}