Ackert, Patricia. Cause & effect : intermediate reading practice / Cause and effect Patricia Ackert ; with Nicki Giroux de Navarro and Jean Bernard. - 3rd ed. - Boston : Heinle & Heinle, c1999. - xi, 320 p. : ill., maps ; 26 cm. Includes index. ISBN: 0838408745 (pbk.) LCCN: 98043107 Subjects--Topical Terms: English language--Textbooks for foreign speakers LC Class. No.: PE1128 Dewey Class. No.: 428.6/4