@book{467961,
  address    = {[Yarinacocha]},
  pages      = {107},
  publisher  = {Instituto Lingüístico de Verano},
  title      = {Cálculo 7},
  url        = {http://www.sil.org/americas/peru/show_work.asp?id=21156},
  year       = {1965},
  country    = {Peru [PE]},
  lgcode     = {Arabela [arl]},
  macro_area = {South America},
  sil_id     = {21156},
  src        = {sil16},
  subject    = {Arithmetic [Zarth]}
}