TY  - BOOK
AU  - Richards,Jack C.
TI  - New interchange: english for international communication. Student's book 2A 
U1  - 421.5 R516stb 1997 
PY  - 1997///
CY  - Cambridge
PB  - Cambridge University, 
KW  - INGLES
KW  - TEXTO DE ESTUDIO
N1  - INGENIERIA COMPUTACION-BASICA
ER  -