Wellman, Guy. The Heinemann English wordbuilder : vocabulary development and practice for higher-level students / Guy Wellman. - Oxford : Heinemann English Language Teaching, 1989. - 266 p. ; 27 cm. First published 1989 in association with ELA ISBN: 0435285564 Subjects--Topical Terms: Vocabulary--Problems, exercises, etc. Dewey Class. No.: 418.076 / WEL