@book{ QUESADA,

author = { JOSE FRANCISCO QUESADA MORENO } ,

title = { MATHEMATICS AND LANGUAGES: LOGICAL, SEMIOTIC, SOCIAL AND COMPUTATIONAL PERSPECTIVES. },

publisher = { SERVICIO DE PUBLICACIONES DE LA SAEM THALES },

address = { SEVILLA, ESPAÑA },

year = { 1998 },

isbn = { 84-923760-1-5 },

}