Wernham, Sara.; Shells / Sara Wernham - Williston: Jolly Learning Ltd, [c2012] - 12 p. illus. 20.5 cm. - Jolly Phonics Extra . ISBN: 9781844142385 Subjects--Topical Terms: English LiteratureJuvenile LiteratureReaders--English StoryUSA Dewey Class. No.: 428.6 / WES