@book{467929,
  address    = {Yarinacocha},
  pages      = {58},
  publisher  = {Instituto Lingüístico de Verano},
  title      = {Cálculo 4},
  year       = {1960},
  country    = {Peru [PE]},
  lgcode     = {Iquito [iqu]},
  macro_area = {South America},
  sil_id     = {20913},
  src        = {sil16},
  subject    = {Arithmetic [Zarth]}
}