Gauchat et al. 1925

Gauchat, Louis, Jules Jeanjaquet & Ernest Tappolet. 1925. Tableaux phonétiques des patois suisses romands. Neuchâtel: Attinger.

https://archive.org/details/gauchat-et-al-1925-tppsr

@book{Gauchat1925,
  address   = {Neuchâtel},
  author    = {Gauchat, Louis and Jeanjaquet, Jules and Tappolet, Ernest},
  key       = {Gauchat},
  publisher = {Attinger},
  title     = {Tableaux phonétiques des patois suisses romands},
  url       = {https://archive.org/details/gauchat-et-al-1925-tppsr},
  year      = {1925}
}