@book{28025,
  address    = {Riberalta},
  publisher  = {Instituto Lingüístico de Verano},
  title      = {Cálculo and libros 1-3},
  year       = {1967},
  country    = {Bolivia [BO]},
  inlg       = {English [eng]},
  lgcode     = {Spanish [spa]},
  macro_area = {Eurasia},
  sil_id     = {12925},
  src        = {sil16},
  subject    = {Arithmetic [Zarth]}
}