TY - BOOK AU - John Soars y Liz Soars TI - American headway the world's most tursted English course SN - 9780194729215 U1 - 428 S11 Ej. 1 PY - 0000///Oxford University Press PB - 2010 KW - Anglais (Langue) Manuels pour allophones Anglais (langue) États-Unis English language English language Study and teaching Foreign speakers English language Textbooks for foreign speakers Textbooks for foreign speakers ER -