TY  - BOOK
AU  - Richards, Jack C.
AU  - Barbisan, Carlos; Sandy, Chuck
TI  - Connect : : student's book 4 
SN  - 978-0-521-73721
AV  - 428.34 R37c 
PY  - 2009///
CY  - New York
PB  - Cambridge University Press
KW  - English language
KW  - Textbooks for English speakers
ER  -