TY - BOOK AU - Douglas,Nancy AU - Morgan,James R. TI - World class 2: expanding english fluency SN - 9781133565895 AV - PE1128 D68 2013 U1 - 428.24 23 PY - 2013/// CY - Boston, MA ; , México PB - National Geographic Learning, Cengage Learning KW - English language KW - Textbooks for foreign speakers KW - Sound recordings for foreign speakers KW - Inglés (Lenguaje) KW - Libros de texto para extranjeros N1 - Includes index ER -