Blyton, Enid. Look out, secret seven / Enid Blyton. - London : Hodder Children's Books, 2002. - 136 p. ؛ 22 cm. - Blyton, Enid. Secret seven. . ISBN: 0340796499 Subjects--Topical Terms: Secret Seven (Fictitious characters)--Juvenile fiction. LC Class. No.: PZ7.B629 / lo 2002