Black, Michael. Objective IELTS. self-study student's book / Intermediate : Michael Black, Wendy Sharp. - Cambridge : Cambridge University Press, 2006. - 208 p. : ill. ; 28 cm + 1 CD - Cambridge books for Cambridge exams . ISBN: 9780521608855 (CD) 0521608856 Subjects--Topical Terms: English language--Textbooks for foreign speakers