TY  - GEN
AU  - Romero Dueñas,Carlos
AU  - Gonzalez Hermoso, Alfredo
TI  - ECO B1: nivel 2 : libro del alumno 
SN  - 8477118981
AV  - PC4112 .D84 2004
PY  - 2004///
CY  - Madrid
PB  - Edelsa
KW  - Spanish language
KW  - Grammar
KW  - Problems, exercises, etc
KW  - Textbooks for foreign speakers
ER  -