Hughes, Monica. Big machines / written by Monica Hughes ; illustrated by Jenna Riggs. - London, UK : Ladybird Books/Penguin Random House, 2015. - 31 p. : col. ill. ; 18 cm. - Read it yourself with Ladybird ; Level2 . ISBN: 9780723295099 Subjects--Topical Terms: Children's stories, (English)Machinery--Juvenile literature.