Unstead, R. J. Britain in the 20th century / [by] R. J. Unstead. - London : A & C Black, [1966]. - 272 p. : front., ill. (incl. ports.), maps, tables. ; 24 cm. - A history of Britain 5 . - 942.082 . Subjects--Geographic Terms: Great Britain--History--Juvenile literature.--20th century Dewey Class. No.: 942.082