00466pamaa2200145 4500 0000014063 20060911090000.0 0521367786 428 CAM PE1128.A2 CAM 1990 CAMBRIDGE proficiency examination practice 3 : teacher's book. Cambridge: C.U.P., 1990. v, 88p.: 24cm. English language -- Textbooks for foreign speakers Universtiy of Cambridge Local Examinations Syndicate