Some general regularities in the formation and development of national languages
Guxman, M.M., 1968, "Some general regularities in the formation and development of national languages" in Fishman, J.A. (ed.) Readings in the Sociology of Language, Haga: Mouton, 766-779. GI-03; GI-05; GI-19; AR-03; LA-03; MA-02; PA-05 Gako-hitzak: Hizkuntza (nazionala)