Perera, Katharine. Children's writing and reading : analysing classroom language / Katharine Perera. - Oxford [Oxfordshire] ; New York : London : B. Blackwell ; in association with A. Deutsch, 1984. - xiii, 354 p. ; 24 cm. Includes index. ISBN: 0631136533 : $37.95 0631136541 (pbk.) : $15.95 LCCN: 84008857 LC Class. No.: LB1139.L3 .P47 1984 / P375 1984 Dewey Class. No.: 372.6