. . "English language Study and teaching Foreign speakers." . . "English language Study and teaching Spanish speakers." . . "Conversation and phrase books" . . . . . . . . . . "Textbooks" . . . "Assimil, método cotidiano" . . . "American with ease" . . . . . "American English" . "El inglés americano sin esfuerzo" . . "Self-instruction" . "El inglés americano sin esfuerzo = American with ease" . . . "El Inglés Americano sin esfuerzo" . . . . . "English language Spoken English." . . "English language Textbooks for foreign speakers Spanish." . . "Assimil (Firm)" . . "English language." . . "English language Self-instruction." . . "Anglais (Langue) Manuels pour hispanophones." . .