Rees, Leslie. Billa, the wombat who had a bad dream / Leslie Rees ; illustrated by Penny Walton. - 1st ed. - Australia : Child and associates, 1988. - [28] p. : ill. ; 27 cm. 326 326 ISBN: 0 86777 235 2 Subjects--Topical Terms: English Novel.Children books--English. Dewey Class. No.: 823 / R259b