Romero Dueñas, Carlos <br/><br/>
ECO B1+ :  libro del profesor / 
Carlos Romera Duenas,A. Gonzalez Hermoso. 
 - 128 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>847711899X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Spanish language--Grammar--Problems, exercises, etc.<br/>Spanish language--Textbooks for foreign speakers
<br/><br/><label>LC Class. No.: </label>PC4112  / .D844 2005