Stephens, Mary New proficiency writing / Mary Stephens. - 2 v. : ill. ; 30 cm. - Longman exam skills . ISBN: 0582529972 (Students' book) 0582529980 (Teacher's book) Subjects--Topical Terms: English language--Composition and exercises--United StatesEnglish language--Written EnglishEnglish language--Textbooks for foreign speakersEnglish language--Examinations--Study guides