1. Björn Lindblom: Per una biologia evolutiva del llenguatge;Argente;Límits,1987
2. Social meaning in linguistic structures: Code switching in Norway;Blom,1972
3. The Urbanization of Rural Dialect Speakers: A Sociolinguistic Study in Brazil;Bortoni-Ricardo,1985
4. The pronouns of power and solidarity;Brown,1960
5. The Sound Patterns of English;Chomsky,1968