Powell, Debra Grammar practice for upper intermediate students / Debra Powell, Elaine Walker, Steve Elsworth - 3. ed. - Malaysia Pearson Education 2010 - 208 s. res., tbl. 25 cm. Lise Kütüphanesi ISBN: 9781405853019 Subjects--Topical Terms: İngiliz dili--Gramer Dewey Class. No.: 425