00565pamaa2200181 4500 0000014789 20060728090000.0 0838438148 428.64 ACK PE1128.A3 ACK 1994 ACKERT Cause and effect : intermediate reading practice Patricia Ackert with Nicki Giroux de Navarro. 2nd ed. Massachusetts: Heinle & Heinle, 1994. x, 293p.: 26cm. Readers English language -- Textbooks for foreign speakers Navarro, Nikki Giroux de