TY - BOOK AU - Sommer,Robert F TI - Teaching writing to adults: strategies and concepts for improving learner performance T2 - The Jossey-Bass higher and adult education SN - 1555421725 U1 - 374.13 PY - 1989/// CY - San Francisco, CA. PB - Jossey-Bass KW - Educación de adultos KW - Enseñanza KW - Inglés KW - Retórica ER -