TY  - BOOK
AU  - Seligson, Paul
TI  - Essential american english 4
SN  - 978-607-06-0363-1
U1  - 400 - Lenguas 
PY  - 2012///
CY  - México: 
PB  - Richmond Publishing, 
KW  - Inglés
N1  - Indice de unidad, referencias bibliográficas: coursebook, studen CD-ROM, teacher's book, class audio, digital book for teachers; I'm sure I know you from somewhere.--Shopping around.--Are you going to a show soon?.--How's it done?; 2012
ER  -