TY  - BOOK
AU  - Richards,Jack C.
AU  - Hull,Jonathan
AU  - Proctor,Susan
TI  - Interchange  : english for international communication : students book  
SN  - 052137684x
AV  - PE1128 .R52 1995
PY  - 1995///
CY  - USA  
PB  - Cambridge University Press , 
KW  - Ingles
KW  - Texto para extranjeros
ER  -