TY - BOOK AU - Swan,Michael TI - Practical English Usage SN - 0-19-431197-X PY - 1995/// CY - Oxford PB - Oxford University Press KW - INGLÉS KW - Tesauro de la Unesco KW - GRAMÁTICA KW - VOCABULARIO N1 - New edition thoroughly revised and brought up to date. Many explanations and examples have been improved and rewritten. Most of the points treated are grammatical, but there are also explanations of a certain number of common vocabulary problems ER -