Ackert, Patricia Cause and effect intermediate reading practice / Patricia Ackert - Hải Phòng : Nxb.Hải phòng, 2003 - 255 Subjects--Topical Terms: English language--Textbooks for foreign speakersTiếng Anh--Đọc hiểuEnglish language--Reading comprehension. Dewey Class. No.: 428.64 / ACK 2003