Stephenson, Helen English explorer 2 : student's book / Helen Stephenson - Singapore Heinle Cengage Learning 2011 - 127 s. rnk. res., fotoğ., tbl. 30 cm. Lise Kütüphanesi ISBN: 9781111061876 Subjects--Topical Terms: İngiliz dili--Ders kitapları Dewey Class. No.: 428