The greatest invention of all time /
Harris, Nicholas, 1956-
The greatest invention of all time / Nicholas Harris - New York : Cambridge University Press, 2014 - 24 p. : col. ill. ; 21 cm. - Cambridge discovery interactive readers Level A2 . - Cambridge discovery interactive readers .
9781107621619 (pbk. : alk. paper)
Inventions--Juvenile literature
Technology--Juvenile literature
English language--Textbooks for foreign speakers
Readers (Elementary)
The greatest invention of all time / Nicholas Harris - New York : Cambridge University Press, 2014 - 24 p. : col. ill. ; 21 cm. - Cambridge discovery interactive readers Level A2 . - Cambridge discovery interactive readers .
9781107621619 (pbk. : alk. paper)
Inventions--Juvenile literature
Technology--Juvenile literature
English language--Textbooks for foreign speakers
Readers (Elementary)