@book{jenks1905,
  address   = {Manila},
  author    = {Jenks, A. E.},
  key       = {Jenks (1905)},
  pages     = {308},
  publisher = {Bureau of Printing},
  series    = {Ethnol. Surv. Publ.},
  title     = {The Bontoc Igorot},
  volume    = {1},
  year      = {1905}
}