@misc{3100,
  author = {Lemle, Miriam},
  title  = {Internal classification of the Tupi-Guarani linguistic family. In David Bendor-Samuel (ed.), Tupi studies I (Summer Institute of Linguistics Publications in Linguistics and Related Fields 29), 107-129. Norman: Summer Institute of Linguistics of the University of Oklahoma.},
  year   = {1971}
}