@book{163152,
  address    = {Quito},
  publisher  = {Instituto Lingüístico de Verano},
  title      = {Cálculo 1-5},
  year       = {1962},
  country    = {Ecuador [EC]},
  lgcode     = {Spanish [spa]},
  macro_area = {Eurasia},
  sil_id     = {13279},
  src        = {sil16},
  subject    = {Arithmetic [Zarth]}
}