Grimshaw, Nigel. The angry valley Nigel Grimshaw ; illustrated by Charles Keeping. - London Longman c1970. - 105 p. ill. 21 cm. - Longman structural readers ; stage 4 . Vocabulary level: 1100 words. ISBN: 0582537533 Nat. Bib. No.: GB70-25209 Subjects--Topical Terms: Readers Dewey Class. No.: 428.6/4