BB | ALEXANDER, L. G.: Longman English Grammar Practice. Longman. 1990 |
BB | BEIGDEBER ATIENZA, F.: Diccionario Politécnico de las Lenguas Española e Inglesa. Díaz de Atienza |
BB | Dudley-Evans, Tony. Nucleus, english for science and technology engineering / Tony Dudley-Evans, Tim Smart, John Wall. London : Longman Group, 1978 |
BB | EASTWOOD, John: Oxford Practice Grammar. Oxford University Press. 1992 |
BB | Engineering. Civil and Mechanical Engineering. English Language Services, Inc. Collier Macmillan Publishers. |
BB | IBOTTSON, Mark. English for Engineering/IBOTTSON, Mark. Cambridge University Press.2008 |